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Theorem cvrle 34565
Description: The covers relation implies the less-than-or-equal relation. (Contributed by NM, 12-Oct-2011.)
Hypotheses
Ref Expression
cvrle.b  |-  B  =  ( Base `  K
)
cvrle.l  |-  .<_  =  ( le `  K )
cvrle.c  |-  C  =  (  <o  `  K )
Assertion
Ref Expression
cvrle  |-  ( ( ( K  e.  A  /\  X  e.  B  /\  Y  e.  B
)  /\  X C Y )  ->  X  .<_  Y )

Proof of Theorem cvrle
StepHypRef Expression
1 cvrle.b . . 3  |-  B  =  ( Base `  K
)
2 eqid 2622 . . 3  |-  ( lt
`  K )  =  ( lt `  K
)
3 cvrle.c . . 3  |-  C  =  (  <o  `  K )
41, 2, 3cvrlt 34557 . 2  |-  ( ( ( K  e.  A  /\  X  e.  B  /\  Y  e.  B
)  /\  X C Y )  ->  X
( lt `  K
) Y )
5 cvrle.l . . . 4  |-  .<_  =  ( le `  K )
65, 2pltval 16960 . . 3  |-  ( ( K  e.  A  /\  X  e.  B  /\  Y  e.  B )  ->  ( X ( lt
`  K ) Y  <-> 
( X  .<_  Y  /\  X  =/=  Y ) ) )
76simprbda 653 . 2  |-  ( ( ( K  e.  A  /\  X  e.  B  /\  Y  e.  B
)  /\  X ( lt `  K ) Y )  ->  X  .<_  Y )
84, 7syldan 487 1  |-  ( ( ( K  e.  A  /\  X  e.  B  /\  Y  e.  B
)  /\  X C Y )  ->  X  .<_  Y )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 384    /\ w3a 1037    = wceq 1483    e. wcel 1990    =/= wne 2794   class class class wbr 4653   ` cfv 5888   Basecbs 15857   lecple 15948   ltcplt 16941    <o ccvr 34549
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-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-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-rab 2921  df-v 3202  df-sbc 3436  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-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-iota 5851  df-fun 5890  df-fv 5896  df-plt 16958  df-covers 34553
This theorem is referenced by:  cvrnbtwn4  34566  cvrcmp  34570  atcvrj2b  34718  atexchcvrN  34726  llncmp  34808  llncvrlpln  34844  lplncmp  34848  lplncvrlvol  34902  lvolcmp  34903
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