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Theorem 2lplnja 34905
Description: The join of two different lattice planes in a lattice volume equals the volume (version of 2lplnj 34906 in terms of atoms). (Contributed by NM, 12-Jul-2012.)
Hypotheses
Ref Expression
2lplnja.l  |-  .<_  =  ( le `  K )
2lplnja.j  |-  .\/  =  ( join `  K )
2lplnja.a  |-  A  =  ( Atoms `  K )
2lplnja.v  |-  V  =  ( LVols `  K )
Assertion
Ref Expression
2lplnja  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) )  =  W )

Proof of Theorem 2lplnja
StepHypRef Expression
1 eqid 2622 . 2  |-  ( Base `  K )  =  (
Base `  K )
2 2lplnja.l . 2  |-  .<_  =  ( le `  K )
3 simp11l 1172 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  K  e.  HL )
4 hllat 34650 . . 3  |-  ( K  e.  HL  ->  K  e.  Lat )
53, 4syl 17 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  K  e.  Lat )
6 simp121 1193 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  P  e.  A )
7 simp122 1194 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  Q  e.  A )
8 2lplnja.j . . . . . 6  |-  .\/  =  ( join `  K )
9 2lplnja.a . . . . . 6  |-  A  =  ( Atoms `  K )
101, 8, 9hlatjcl 34653 . . . . 5  |-  ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  ->  ( P  .\/  Q
)  e.  ( Base `  K ) )
113, 6, 7, 10syl3anc 1326 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( P  .\/  Q )  e.  (
Base `  K )
)
12 simp123 1195 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  R  e.  A )
131, 9atbase 34576 . . . . 5  |-  ( R  e.  A  ->  R  e.  ( Base `  K
) )
1412, 13syl 17 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  R  e.  ( Base `  K )
)
151, 8latjcl 17051 . . . 4  |-  ( ( K  e.  Lat  /\  ( P  .\/  Q )  e.  ( Base `  K
)  /\  R  e.  ( Base `  K )
)  ->  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K ) )
165, 11, 14, 15syl3anc 1326 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K ) )
17 simp2l1 1160 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  S  e.  A )
18 simp2l2 1161 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  T  e.  A )
191, 8, 9hlatjcl 34653 . . . . 5  |-  ( ( K  e.  HL  /\  S  e.  A  /\  T  e.  A )  ->  ( S  .\/  T
)  e.  ( Base `  K ) )
203, 17, 18, 19syl3anc 1326 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( S  .\/  T )  e.  (
Base `  K )
)
21 simp2l3 1162 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  U  e.  A )
221, 9atbase 34576 . . . . 5  |-  ( U  e.  A  ->  U  e.  ( Base `  K
) )
2321, 22syl 17 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  U  e.  ( Base `  K )
)
241, 8latjcl 17051 . . . 4  |-  ( ( K  e.  Lat  /\  ( S  .\/  T )  e.  ( Base `  K
)  /\  U  e.  ( Base `  K )
)  ->  ( ( S  .\/  T )  .\/  U )  e.  ( Base `  K ) )
255, 20, 23, 24syl3anc 1326 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( S  .\/  T )  .\/  U )  e.  ( Base `  K ) )
261, 8latjcl 17051 . . 3  |-  ( ( K  e.  Lat  /\  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K
)  /\  ( ( S  .\/  T )  .\/  U )  e.  ( Base `  K ) )  -> 
( ( ( P 
.\/  Q )  .\/  R )  .\/  ( ( S  .\/  T ) 
.\/  U ) )  e.  ( Base `  K
) )
275, 16, 25, 26syl3anc 1326 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) )  e.  ( Base `  K ) )
28 simp11r 1173 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  W  e.  V )
29 2lplnja.v . . . 4  |-  V  =  ( LVols `  K )
301, 29lvolbase 34864 . . 3  |-  ( W  e.  V  ->  W  e.  ( Base `  K
) )
3128, 30syl 17 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  W  e.  ( Base `  K )
)
32 simp31 1097 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( P  .\/  Q )  .\/  R )  .<_  W )
33 simp32 1098 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( S  .\/  T )  .\/  U )  .<_  W )
341, 2, 8latjle12 17062 . . . 4  |-  ( ( K  e.  Lat  /\  ( ( ( P 
.\/  Q )  .\/  R )  e.  ( Base `  K )  /\  (
( S  .\/  T
)  .\/  U )  e.  ( Base `  K
)  /\  W  e.  ( Base `  K )
) )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W )  <->  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) )  .<_  W )
)
355, 16, 25, 31, 34syl13anc 1328 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W )  <->  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) )  .<_  W )
)
3632, 33, 35mpbi2and 956 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) )  .<_  W )
371, 2, 8latlej2 17061 . . . . . . . . . 10  |-  ( ( K  e.  Lat  /\  ( S  .\/  T )  e.  ( Base `  K
)  /\  U  e.  ( Base `  K )
)  ->  U  .<_  ( ( S  .\/  T
)  .\/  U )
)
385, 20, 23, 37syl3anc 1326 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  U  .<_  ( ( S  .\/  T
)  .\/  U )
)
391, 2, 5, 23, 25, 31, 38, 33lattrd 17058 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  U  .<_  W )
401, 2, 8latjle12 17062 . . . . . . . . 9  |-  ( ( K  e.  Lat  /\  ( ( ( P 
.\/  Q )  .\/  R )  e.  ( Base `  K )  /\  U  e.  ( Base `  K
)  /\  W  e.  ( Base `  K )
) )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  U  .<_  W )  <->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  .<_  W ) )
415, 16, 23, 31, 40syl13anc 1328 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.<_  W  /\  U  .<_  W )  <->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  U )  .<_  W )
)
4232, 39, 41mpbi2and 956 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  .<_  W )
4342ad2antrr 762 . . . . . 6  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  .<_  W )
443ad2antrr 762 . . . . . . 7  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  K  e.  HL )
453, 6, 73jca 1242 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A ) )
4645ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A ) )
4712, 21jca 554 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( R  e.  A  /\  U  e.  A ) )
4847ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( R  e.  A  /\  U  e.  A ) )
49 simp13l 1176 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  P  =/=  Q )
5049ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  P  =/=  Q )
51 simp13r 1177 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  -.  R  .<_  ( P  .\/  Q
) )
5251ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  -.  R  .<_  ( P  .\/  Q
) )
53 simp33 1099 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( P  .\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) )
5453ad2antrr 762 . . . . . . . . 9  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( ( P  .\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) )
55 simplr 792 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  S  .<_  ( ( P  .\/  Q
)  .\/  R )
)
56 simpr 477 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)
571, 9atbase 34576 . . . . . . . . . . . . . . . . . . 19  |-  ( S  e.  A  ->  S  e.  ( Base `  K
) )
5817, 57syl 17 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  S  e.  ( Base `  K )
)
591, 9atbase 34576 . . . . . . . . . . . . . . . . . . 19  |-  ( T  e.  A  ->  T  e.  ( Base `  K
) )
6018, 59syl 17 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  T  e.  ( Base `  K )
)
611, 2, 8latjle12 17062 . . . . . . . . . . . . . . . . . 18  |-  ( ( K  e.  Lat  /\  ( S  e.  ( Base `  K )  /\  T  e.  ( Base `  K )  /\  (
( P  .\/  Q
)  .\/  R )  e.  ( Base `  K
) ) )  -> 
( ( S  .<_  ( ( P  .\/  Q
)  .\/  R )  /\  T  .<_  ( ( P  .\/  Q ) 
.\/  R ) )  <-> 
( S  .\/  T
)  .<_  ( ( P 
.\/  Q )  .\/  R ) ) )
625, 58, 60, 16, 61syl13anc 1328 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( S  .<_  ( ( P 
.\/  Q )  .\/  R )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  <->  ( S  .\/  T )  .<_  ( ( P  .\/  Q )  .\/  R ) ) )
6362ad2antrr 762 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( ( S  .<_  ( ( P 
.\/  Q )  .\/  R )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  <->  ( S  .\/  T )  .<_  ( ( P  .\/  Q )  .\/  R ) ) )
6455, 56, 63mpbi2and 956 . . . . . . . . . . . . . . 15  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( S  .\/  T )  .<_  ( ( P  .\/  Q ) 
.\/  R ) )
6564adantr 481 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( S  .\/  T )  .<_  ( ( P  .\/  Q ) 
.\/  R ) )
66 simpr 477 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)
671, 2, 8latjle12 17062 . . . . . . . . . . . . . . . 16  |-  ( ( K  e.  Lat  /\  ( ( S  .\/  T )  e.  ( Base `  K )  /\  U  e.  ( Base `  K
)  /\  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K ) ) )  ->  ( ( ( S  .\/  T ) 
.<_  ( ( P  .\/  Q )  .\/  R )  /\  U  .<_  ( ( P  .\/  Q ) 
.\/  R ) )  <-> 
( ( S  .\/  T )  .\/  U ) 
.<_  ( ( P  .\/  Q )  .\/  R ) ) )
685, 20, 23, 16, 67syl13anc 1328 . . . . . . . . . . . . . . 15  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( S  .\/  T
)  .<_  ( ( P 
.\/  Q )  .\/  R )  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  <->  ( ( S 
.\/  T )  .\/  U )  .<_  ( ( P  .\/  Q )  .\/  R ) ) )
6968ad3antrrr 766 . . . . . . . . . . . . . 14  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( S  .\/  T
)  .<_  ( ( P 
.\/  Q )  .\/  R )  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  <->  ( ( S 
.\/  T )  .\/  U )  .<_  ( ( P  .\/  Q )  .\/  R ) ) )
7065, 66, 69mpbi2and 956 . . . . . . . . . . . . 13  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( ( S  .\/  T )  .\/  U )  .<_  ( ( P  .\/  Q )  .\/  R ) )
71 simp2l 1087 . . . . . . . . . . . . . . 15  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( S  e.  A  /\  T  e.  A  /\  U  e.  A ) )
72 simp12 1092 . . . . . . . . . . . . . . 15  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A ) )
73 simp2rr 1131 . . . . . . . . . . . . . . 15  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  -.  U  .<_  ( S  .\/  T
) )
74 simp2rl 1130 . . . . . . . . . . . . . . 15  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  S  =/=  T )
752, 8, 93at 34776 . . . . . . . . . . . . . . 15  |-  ( ( ( K  e.  HL  /\  ( S  e.  A  /\  T  e.  A  /\  U  e.  A
)  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A ) )  /\  ( -.  U  .<_  ( S  .\/  T )  /\  S  =/=  T
) )  ->  (
( ( S  .\/  T )  .\/  U ) 
.<_  ( ( P  .\/  Q )  .\/  R )  <-> 
( ( S  .\/  T )  .\/  U )  =  ( ( P 
.\/  Q )  .\/  R ) ) )
763, 71, 72, 73, 74, 75syl32anc 1334 . . . . . . . . . . . . . 14  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( S  .\/  T
)  .\/  U )  .<_  ( ( P  .\/  Q )  .\/  R )  <-> 
( ( S  .\/  T )  .\/  U )  =  ( ( P 
.\/  Q )  .\/  R ) ) )
7776ad3antrrr 766 . . . . . . . . . . . . 13  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( S  .\/  T
)  .\/  U )  .<_  ( ( P  .\/  Q )  .\/  R )  <-> 
( ( S  .\/  T )  .\/  U )  =  ( ( P 
.\/  Q )  .\/  R ) ) )
7870, 77mpbid 222 . . . . . . . . . . . 12  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( ( S  .\/  T )  .\/  U )  =  ( ( P  .\/  Q ) 
.\/  R ) )
7978eqcomd 2628 . . . . . . . . . . 11  |-  ( ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  /\  U  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( ( P  .\/  Q )  .\/  R )  =  ( ( S  .\/  T ) 
.\/  U ) )
8079ex 450 . . . . . . . . . 10  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( U  .<_  ( ( P  .\/  Q )  .\/  R )  ->  ( ( P 
.\/  Q )  .\/  R )  =  ( ( S  .\/  T ) 
.\/  U ) ) )
8180necon3ad 2807 . . . . . . . . 9  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( P  .\/  Q
)  .\/  R )  =/=  ( ( S  .\/  T )  .\/  U )  ->  -.  U  .<_  ( ( P  .\/  Q
)  .\/  R )
) )
8254, 81mpd 15 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  -.  U  .<_  ( ( P  .\/  Q )  .\/  R ) )
832, 8, 9, 29lvoli2 34867 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( R  e.  A  /\  U  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
)  /\  -.  U  .<_  ( ( P  .\/  Q )  .\/  R ) ) )  ->  (
( ( P  .\/  Q )  .\/  R ) 
.\/  U )  e.  V )
8446, 48, 50, 52, 82, 83syl113anc 1338 . . . . . . 7  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  e.  V
)
8528ad2antrr 762 . . . . . . 7  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  W  e.  V )
862, 29lvolcmp 34903 . . . . . . 7  |-  ( ( K  e.  HL  /\  ( ( ( P 
.\/  Q )  .\/  R )  .\/  U )  e.  V  /\  W  e.  V )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .\/  U ) 
.<_  W  <->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  U )  =  W ) )
8744, 84, 85, 86syl3anc 1326 . . . . . 6  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.\/  U )  .<_  W 
<->  ( ( ( P 
.\/  Q )  .\/  R )  .\/  U )  =  W ) )
8843, 87mpbid 222 . . . . 5  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  =  W )
891, 2, 8latjlej2 17066 . . . . . . . 8  |-  ( ( K  e.  Lat  /\  ( U  e.  ( Base `  K )  /\  ( ( S  .\/  T )  .\/  U )  e.  ( Base `  K
)  /\  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K ) ) )  ->  ( U  .<_  ( ( S  .\/  T
)  .\/  U )  ->  ( ( ( P 
.\/  Q )  .\/  R )  .\/  U ) 
.<_  ( ( ( P 
.\/  Q )  .\/  R )  .\/  ( ( S  .\/  T ) 
.\/  U ) ) ) )
905, 23, 25, 16, 89syl13anc 1328 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( U  .<_  ( ( S  .\/  T )  .\/  U )  ->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  U )  .<_  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) ) )
9138, 90mpd 15 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  .<_  ( ( ( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) )
9291ad2antrr 762 . . . . 5  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  U )  .<_  ( ( ( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) )
9388, 92eqbrtrrd 4677 . . . 4  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  T  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  W  .<_  ( ( ( P  .\/  Q )  .\/  R ) 
.\/  ( ( S 
.\/  T )  .\/  U ) ) )
941, 8, 9hlatjcl 34653 . . . . . . . . . . . 12  |-  ( ( K  e.  HL  /\  S  e.  A  /\  U  e.  A )  ->  ( S  .\/  U
)  e.  ( Base `  K ) )
953, 17, 21, 94syl3anc 1326 . . . . . . . . . . 11  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( S  .\/  U )  e.  (
Base `  K )
)
961, 2, 8latlej2 17061 . . . . . . . . . . 11  |-  ( ( K  e.  Lat  /\  ( S  .\/  U )  e.  ( Base `  K
)  /\  T  e.  ( Base `  K )
)  ->  T  .<_  ( ( S  .\/  U
)  .\/  T )
)
975, 95, 60, 96syl3anc 1326 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  T  .<_  ( ( S  .\/  U
)  .\/  T )
)
988, 9hlatj32 34658 . . . . . . . . . . 11  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  T  e.  A  /\  U  e.  A
) )  ->  (
( S  .\/  T
)  .\/  U )  =  ( ( S 
.\/  U )  .\/  T ) )
993, 17, 18, 21, 98syl13anc 1328 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( S  .\/  T )  .\/  U )  =  ( ( S  .\/  U ) 
.\/  T ) )
10097, 99breqtrrd 4681 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  T  .<_  ( ( S  .\/  T
)  .\/  U )
)
1011, 2, 5, 60, 25, 31, 100, 33lattrd 17058 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  T  .<_  W )
1021, 2, 8latjle12 17062 . . . . . . . . 9  |-  ( ( K  e.  Lat  /\  ( ( ( P 
.\/  Q )  .\/  R )  e.  ( Base `  K )  /\  T  e.  ( Base `  K
)  /\  W  e.  ( Base `  K )
) )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  T  .<_  W )  <->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  .<_  W ) )
1035, 16, 60, 31, 102syl13anc 1328 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.<_  W  /\  T  .<_  W )  <->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  T )  .<_  W )
)
10432, 101, 103mpbi2and 956 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  .<_  W )
105104ad2antrr 762 . . . . . 6  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  .<_  W )
1063ad2antrr 762 . . . . . . 7  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  K  e.  HL )
10745ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A ) )
10812, 18jca 554 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( R  e.  A  /\  T  e.  A ) )
109108ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( R  e.  A  /\  T  e.  A ) )
11049ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  P  =/=  Q )
11151ad2antrr 762 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  -.  R  .<_  ( P  .\/  Q
) )
112 simpr 477 . . . . . . . 8  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )
1132, 8, 9, 29lvoli2 34867 . . . . . . . 8  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( R  e.  A  /\  T  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
)  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) ) )  ->  (
( ( P  .\/  Q )  .\/  R ) 
.\/  T )  e.  V )
114107, 109, 110, 111, 112, 113syl113anc 1338 . . . . . . 7  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  e.  V
)
11528ad2antrr 762 . . . . . . 7  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  W  e.  V )
1162, 29lvolcmp 34903 . . . . . . 7  |-  ( ( K  e.  HL  /\  ( ( ( P 
.\/  Q )  .\/  R )  .\/  T )  e.  V  /\  W  e.  V )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .\/  T ) 
.<_  W  <->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  T )  =  W ) )
117106, 114, 115, 116syl3anc 1326 . . . . . 6  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.\/  T )  .<_  W 
<->  ( ( ( P 
.\/  Q )  .\/  R )  .\/  T )  =  W ) )
118105, 117mpbid 222 . . . . 5  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  =  W )
1191, 2, 8latjlej2 17066 . . . . . . . 8  |-  ( ( K  e.  Lat  /\  ( T  e.  ( Base `  K )  /\  ( ( S  .\/  T )  .\/  U )  e.  ( Base `  K
)  /\  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K ) ) )  ->  ( T  .<_  ( ( S  .\/  T
)  .\/  U )  ->  ( ( ( P 
.\/  Q )  .\/  R )  .\/  T ) 
.<_  ( ( ( P 
.\/  Q )  .\/  R )  .\/  ( ( S  .\/  T ) 
.\/  U ) ) ) )
1205, 60, 25, 16, 119syl13anc 1328 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( T  .<_  ( ( S  .\/  T )  .\/  U )  ->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  T )  .<_  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) ) )
121100, 120mpd 15 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  .<_  ( ( ( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) )
122121ad2antrr 762 . . . . 5  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  T )  .<_  ( ( ( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) )
123118, 122eqbrtrrd 4677 . . . 4  |-  ( ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T ) ) )  /\  ( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  ( ( S  .\/  T )  .\/  U ) 
.<_  W  /\  ( ( P  .\/  Q ) 
.\/  R )  =/=  ( ( S  .\/  T )  .\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  /\  -.  T  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  W  .<_  ( ( ( P  .\/  Q )  .\/  R ) 
.\/  ( ( S 
.\/  T )  .\/  U ) ) )
12493, 123pm2.61dan 832 . . 3  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  S  .<_  ( ( P  .\/  Q
)  .\/  R )
)  ->  W  .<_  ( ( ( P  .\/  Q )  .\/  R ) 
.\/  ( ( S 
.\/  T )  .\/  U ) ) )
1251, 8, 9hlatjcl 34653 . . . . . . . . . . 11  |-  ( ( K  e.  HL  /\  T  e.  A  /\  U  e.  A )  ->  ( T  .\/  U
)  e.  ( Base `  K ) )
1263, 18, 21, 125syl3anc 1326 . . . . . . . . . 10  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( T  .\/  U )  e.  (
Base `  K )
)
1271, 2, 8latlej1 17060 . . . . . . . . . 10  |-  ( ( K  e.  Lat  /\  S  e.  ( Base `  K )  /\  ( T  .\/  U )  e.  ( Base `  K
) )  ->  S  .<_  ( S  .\/  ( T  .\/  U ) ) )
1285, 58, 126, 127syl3anc 1326 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  S  .<_  ( S  .\/  ( T 
.\/  U ) ) )
1291, 8latjass 17095 . . . . . . . . . 10  |-  ( ( K  e.  Lat  /\  ( S  e.  ( Base `  K )  /\  T  e.  ( Base `  K )  /\  U  e.  ( Base `  K
) ) )  -> 
( ( S  .\/  T )  .\/  U )  =  ( S  .\/  ( T  .\/  U ) ) )
1305, 58, 60, 23, 129syl13anc 1328 . . . . . . . . 9  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( ( S  .\/  T )  .\/  U )  =  ( S 
.\/  ( T  .\/  U ) ) )
131128, 130breqtrrd 4681 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  S  .<_  ( ( S  .\/  T
)  .\/  U )
)
1321, 2, 5, 58, 25, 31, 131, 33lattrd 17058 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  S  .<_  W )
1331, 2, 8latjle12 17062 . . . . . . . 8  |-  ( ( K  e.  Lat  /\  ( ( ( P 
.\/  Q )  .\/  R )  e.  ( Base `  K )  /\  S  e.  ( Base `  K
)  /\  W  e.  ( Base `  K )
) )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .<_  W  /\  S  .<_  W )  <->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  .<_  W ) )
1345, 16, 58, 31, 133syl13anc 1328 . . . . . . 7  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.<_  W  /\  S  .<_  W )  <->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  S )  .<_  W )
)
13532, 132, 134mpbi2and 956 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  .<_  W )
136135adantr 481 . . . . 5  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  .<_  W )
1373adantr 481 . . . . . 6  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  K  e.  HL )
13845adantr 481 . . . . . . 7  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A ) )
13912, 17jca 554 . . . . . . . 8  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( R  e.  A  /\  S  e.  A ) )
140139adantr 481 . . . . . . 7  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( R  e.  A  /\  S  e.  A ) )
14149adantr 481 . . . . . . 7  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  P  =/=  Q )
14251adantr 481 . . . . . . 7  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  -.  R  .<_  ( P  .\/  Q
) )
143 simpr 477 . . . . . . 7  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )
1442, 8, 9, 29lvoli2 34867 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( R  e.  A  /\  S  e.  A
)  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P  .\/  Q
)  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) ) )  ->  (
( ( P  .\/  Q )  .\/  R ) 
.\/  S )  e.  V )
145138, 140, 141, 142, 143, 144syl113anc 1338 . . . . . 6  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  e.  V
)
14628adantr 481 . . . . . 6  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  W  e.  V )
1472, 29lvolcmp 34903 . . . . . 6  |-  ( ( K  e.  HL  /\  ( ( ( P 
.\/  Q )  .\/  R )  .\/  S )  e.  V  /\  W  e.  V )  ->  (
( ( ( P 
.\/  Q )  .\/  R )  .\/  S ) 
.<_  W  <->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  S )  =  W ) )
148137, 145, 146, 147syl3anc 1326 . . . . 5  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( ( P  .\/  Q )  .\/  R ) 
.\/  S )  .<_  W 
<->  ( ( ( P 
.\/  Q )  .\/  R )  .\/  S )  =  W ) )
149136, 148mpbid 222 . . . 4  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  =  W )
1501, 2, 8latjlej2 17066 . . . . . . 7  |-  ( ( K  e.  Lat  /\  ( S  e.  ( Base `  K )  /\  ( ( S  .\/  T )  .\/  U )  e.  ( Base `  K
)  /\  ( ( P  .\/  Q )  .\/  R )  e.  ( Base `  K ) ) )  ->  ( S  .<_  ( ( S  .\/  T
)  .\/  U )  ->  ( ( ( P 
.\/  Q )  .\/  R )  .\/  S ) 
.<_  ( ( ( P 
.\/  Q )  .\/  R )  .\/  ( ( S  .\/  T ) 
.\/  U ) ) ) )
1515, 58, 25, 16, 150syl13anc 1328 . . . . . 6  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( S  .<_  ( ( S  .\/  T )  .\/  U )  ->  ( ( ( P  .\/  Q ) 
.\/  R )  .\/  S )  .<_  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) ) )
152131, 151mpd 15 . . . . 5  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  .<_  ( ( ( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) )
153152adantr 481 . . . 4  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  S )  .<_  ( ( ( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) ) )
154149, 153eqbrtrrd 4677 . . 3  |-  ( ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  /\  -.  S  .<_  ( ( P  .\/  Q )  .\/  R ) )  ->  W  .<_  ( ( ( P  .\/  Q )  .\/  R ) 
.\/  ( ( S 
.\/  T )  .\/  U ) ) )
155124, 154pm2.61dan 832 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  W  .<_  ( ( ( P  .\/  Q )  .\/  R ) 
.\/  ( ( S 
.\/  T )  .\/  U ) ) )
1561, 2, 5, 27, 31, 36, 155latasymd 17057 1  |-  ( ( ( ( K  e.  HL  /\  W  e.  V )  /\  ( P  e.  A  /\  Q  e.  A  /\  R  e.  A )  /\  ( P  =/=  Q  /\  -.  R  .<_  ( P 
.\/  Q ) ) )  /\  ( ( S  e.  A  /\  T  e.  A  /\  U  e.  A )  /\  ( S  =/=  T  /\  -.  U  .<_  ( S 
.\/  T ) ) )  /\  ( ( ( P  .\/  Q
)  .\/  R )  .<_  W  /\  ( ( S  .\/  T ) 
.\/  U )  .<_  W  /\  ( ( P 
.\/  Q )  .\/  R )  =/=  ( ( S  .\/  T ) 
.\/  U ) ) )  ->  ( (
( P  .\/  Q
)  .\/  R )  .\/  ( ( S  .\/  T )  .\/  U ) )  =  W )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    <-> wb 196    /\ wa 384    /\ w3a 1037    = wceq 1483    e. wcel 1990    =/= wne 2794   class class class wbr 4653   ` cfv 5888  (class class class)co 6650   Basecbs 15857   lecple 15948   joincjn 16944   Latclat 17045   Atomscatm 34550   HLchlt 34637   LVolsclvol 34779
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-reu 2919  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-preset 16928  df-poset 16946  df-plt 16958  df-lub 16974  df-glb 16975  df-join 16976  df-meet 16977  df-p0 17039  df-lat 17046  df-clat 17108  df-oposet 34463  df-ol 34465  df-oml 34466  df-covers 34553  df-ats 34554  df-atl 34585  df-cvlat 34609  df-hlat 34638  df-llines 34784  df-lplanes 34785  df-lvols 34786
This theorem is referenced by:  2lplnj  34906
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