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Theorem pcopt2 22823
Description: Concatenation with a point does not affect homotopy class. (Contributed by Mario Carneiro, 12-Feb-2015.)
Hypothesis
Ref Expression
pcopt.1 |- P = ( ( 0 [,] 1 ) X. { Y } )
Assertion
Ref Expression
pcopt2 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F ( *p ` J ) P ) ( ~=ph ` J ) F )
Proof of Theorem pcopt2
Dummy variables x y z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 pcopt.1 . . . . . . . . 9 |- P = ( ( 0 [,] 1 ) X. { Y } )
21fveq1i 6192 . . . . . . . 8 |- ( P ` ( ( 2 x. x ) - 1 ) ) = ( ( ( 0 [,] 1 ) X. { Y } ) ` ( ( 2 x. x ) - 1 ) )
3 simpr 477 . . . . . . . . . 10 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F ` 1 ) = Y )
4 iiuni 22684 . . . . . . . . . . . . 13 |- ( 0 [,] 1 ) = U. II
5 eqid 2622 . . . . . . . . . . . . 13 |- U. J = U. J
64, 5cnf 21050 . . . . . . . . . . . 12 |- ( F e. ( II Cn J ) -> F : ( 0 [,] 1 ) --> U. J )
76adantr 481 . . . . . . . . . . 11 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> F : ( 0 [,] 1 ) --> U. J )
8 1elunit 12291 . . . . . . . . . . 11 |- 1 e. ( 0 [,] 1 )
9 ffvelrn 6357 . . . . . . . . . . 11 |- ( ( F : ( 0 [,] 1 ) --> U. J /\ 1 e. ( 0 [,] 1 ) ) -> ( F ` 1 ) e. U. J )
107, 8, 9sylancl 694 . . . . . . . . . 10 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F ` 1 ) e. U. J )
113, 10eqeltrrd 2702 . . . . . . . . 9 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> Y e. U. J )
12 elii2 22735 . . . . . . . . . 10 |- ( ( x e. ( 0 [,] 1 ) /\ -. x <_ ( 1 / 2 ) ) -> x e. ( ( 1 / 2 ) [,] 1 ) )
13 iihalf2 22732 . . . . . . . . . 10 |- ( x e. ( ( 1 / 2 ) [,] 1 ) -> ( ( 2 x. x ) - 1 ) e. ( 0 [,] 1 ) )
1412, 13syl 17 . . . . . . . . 9 |- ( ( x e. ( 0 [,] 1 ) /\ -. x <_ ( 1 / 2 ) ) -> ( ( 2 x. x ) - 1 ) e. ( 0 [,] 1 ) )
15 fvconst2g 6467 . . . . . . . . 9 |- ( ( Y e. U. J /\ ( ( 2 x. x ) - 1 ) e. ( 0 [,] 1 ) ) -> ( ( ( 0 [,] 1 ) X. { Y } ) ` ( ( 2 x. x ) - 1 ) ) = Y )
1611, 14, 15syl2an 494 . . . . . . . 8 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( x e. ( 0 [,] 1 ) /\ -. x <_ ( 1 / 2 ) ) ) -> ( ( ( 0 [,] 1 ) X. { Y } ) ` ( ( 2 x. x ) - 1 ) ) = Y )
172, 16syl5eq 2668 . . . . . . 7 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( x e. ( 0 [,] 1 ) /\ -. x <_ ( 1 / 2 ) ) ) -> ( P ` ( ( 2 x. x ) - 1 ) ) = Y )
18 simplr 792 . . . . . . 7 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( x e. ( 0 [,] 1 ) /\ -. x <_ ( 1 / 2 ) ) ) -> ( F ` 1 ) = Y )
1917, 18eqtr4d 2659 . . . . . 6 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( x e. ( 0 [,] 1 ) /\ -. x <_ ( 1 / 2 ) ) ) -> ( P ` ( ( 2 x. x ) - 1 ) ) = ( F ` 1 ) )
2019anassrs 680 . . . . 5 |- ( ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ x e. ( 0 [,] 1 ) ) /\ -. x <_ ( 1 / 2 ) ) -> ( P ` ( ( 2 x. x ) - 1 ) ) = ( F ` 1 ) )
2120ifeq2da 4117 . . . 4 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ x e. ( 0 [,] 1 ) ) -> if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( P ` ( ( 2 x. x ) - 1 ) ) ) = if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( F ` 1 ) ) )
2221mpteq2dva 4744 . . 3 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( P ` ( ( 2 x. x ) - 1 ) ) ) ) = ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( F ` 1 ) ) ) )
23 simpl 473 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> F e. ( II Cn J ) )
24 cntop2 21045 . . . . . . . 8 |- ( F e. ( II Cn J ) -> J e. Top )
2524adantr 481 . . . . . . 7 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> J e. Top )
265toptopon 20722 . . . . . . 7 |- ( J e. Top <-> J e. (TopOn ` U. J ) )
2725, 26sylib 208 . . . . . 6 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> J e. (TopOn ` U. J ) )
281pcoptcl 22821 . . . . . 6 |- ( ( J e. (TopOn ` U. J ) /\ Y e. U. J ) -> ( P e. ( II Cn J ) /\ ( P ` 0 ) = Y /\ ( P ` 1 ) = Y ) )
2927, 11, 28syl2anc 693 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( P e. ( II Cn J ) /\ ( P ` 0 ) = Y /\ ( P ` 1 ) = Y ) )
3029simp1d 1073 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> P e. ( II Cn J ) )
3123, 30pcoval 22811 . . 3 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F ( *p ` J ) P ) = ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( P ` ( ( 2 x. x ) - 1 ) ) ) ) )
32 iftrue 4092 . . . . . . . . 9 |- ( x <_ ( 1 / 2 ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) = ( 2 x. x ) )
3332adantl 482 . . . . . . . 8 |- ( ( x e. ( 0 [,] 1 ) /\ x <_ ( 1 / 2 ) ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) = ( 2 x. x ) )
34 elii1 22734 . . . . . . . . 9 |- ( x e. ( 0 [,] ( 1 / 2 ) ) <-> ( x e. ( 0 [,] 1 ) /\ x <_ ( 1 / 2 ) ) )
35 iihalf1 22730 . . . . . . . . 9 |- ( x e. ( 0 [,] ( 1 / 2 ) ) -> ( 2 x. x ) e. ( 0 [,] 1 ) )
3634, 35sylbir 225 . . . . . . . 8 |- ( ( x e. ( 0 [,] 1 ) /\ x <_ ( 1 / 2 ) ) -> ( 2 x. x ) e. ( 0 [,] 1 ) )
3733, 36eqeltrd 2701 . . . . . . 7 |- ( ( x e. ( 0 [,] 1 ) /\ x <_ ( 1 / 2 ) ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) e. ( 0 [,] 1 ) )
3837ex 450 . . . . . 6 |- ( x e. ( 0 [,] 1 ) -> ( x <_ ( 1 / 2 ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) e. ( 0 [,] 1 ) ) )
39 iffalse 4095 . . . . . . 7 |- ( -. x <_ ( 1 / 2 ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) = 1 )
4039, 8syl6eqel 2709 . . . . . 6 |- ( -. x <_ ( 1 / 2 ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) e. ( 0 [,] 1 ) )
4138, 40pm2.61d1 171 . . . . 5 |- ( x e. ( 0 [,] 1 ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) e. ( 0 [,] 1 ) )
4241adantl 482 . . . 4 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ x e. ( 0 [,] 1 ) ) -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) e. ( 0 [,] 1 ) )
43 eqidd 2623 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) = ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) )
447feqmptd 6249 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> F = ( y e. ( 0 [,] 1 ) |-> ( F ` y ) ) )
45 fveq2 6191 . . . . 5 |- ( y = if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) -> ( F ` y ) = ( F ` if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) )
46 fvif 6204 . . . . 5 |- ( F ` if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) = if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( F ` 1 ) )
4745, 46syl6eq 2672 . . . 4 |- ( y = if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) -> ( F ` y ) = if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( F ` 1 ) ) )
4842, 43, 44, 47fmptco 6396 . . 3 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F o. ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ) = ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( F ` ( 2 x. x ) ) , ( F ` 1 ) ) ) )
4922, 31, 483eqtr4d 2666 . 2 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F ( *p ` J ) P ) = ( F o. ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ) )
50 iitopon 22682 . . . . 5 |- II e. (TopOn ` ( 0 [,] 1 ) )
5150a1i 11 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> II e. (TopOn ` ( 0 [,] 1 ) ) )
5251cnmptid 21464 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( x e. ( 0 [,] 1 ) |-> x ) e. ( II Cn II ) )
53 0elunit 12290 . . . . . 6 |- 0 e. ( 0 [,] 1 )
5453a1i 11 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> 0 e. ( 0 [,] 1 ) )
5551, 51, 54cnmptc 21465 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( x e. ( 0 [,] 1 ) |-> 0 ) e. ( II Cn II ) )
56 eqid 2622 . . . . 5 |- ( topGen ` ran (,) ) = ( topGen ` ran (,) )
57 eqid 2622 . . . . 5 |- ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) = ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) )
58 eqid 2622 . . . . 5 |- ( ( topGen ` ran (,) ) ↾t ( ( 1 / 2 ) [,] 1 ) ) = ( ( topGen ` ran (,) ) ↾t ( ( 1 / 2 ) [,] 1 ) )
59 dfii2 22685 . . . . 5 |- II = ( ( topGen ` ran (,) ) ↾t ( 0 [,] 1 ) )
60 0re 10040 . . . . . 6 |- 0 e. RR
6160a1i 11 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> 0 e. RR )
62 1re 10039 . . . . . 6 |- 1 e. RR
6362a1i 11 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> 1 e. RR )
64 halfre 11246 . . . . . . 7 |- ( 1 / 2 ) e. RR
65 halfgt0 11248 . . . . . . . 8 |- 0 < ( 1 / 2 )
6660, 64, 65ltleii 10160 . . . . . . 7 |- 0 <_ ( 1 / 2 )
67 halflt1 11250 . . . . . . . 8 |- ( 1 / 2 ) < 1
6864, 62, 67ltleii 10160 . . . . . . 7 |- ( 1 / 2 ) <_ 1
6960, 62elicc2i 12239 . . . . . . 7 |- ( ( 1 / 2 ) e. ( 0 [,] 1 ) <-> ( ( 1 / 2 ) e. RR /\ 0 <_ ( 1 / 2 ) /\ ( 1 / 2 ) <_ 1 ) )
7064, 66, 68, 69mpbir3an 1244 . . . . . 6 |- ( 1 / 2 ) e. ( 0 [,] 1 )
7170a1i 11 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( 1 / 2 ) e. ( 0 [,] 1 ) )
72 simprl 794 . . . . . . 7 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( y = ( 1 / 2 ) /\ z e. ( 0 [,] 1 ) ) ) -> y = ( 1 / 2 ) )
7372oveq2d 6666 . . . . . 6 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( y = ( 1 / 2 ) /\ z e. ( 0 [,] 1 ) ) ) -> ( 2 x. y ) = ( 2 x. ( 1 / 2 ) ) )
74 2cn 11091 . . . . . . 7 |- 2 e. CC
75 2ne0 11113 . . . . . . 7 |- 2 =/= 0
7674, 75recidi 10756 . . . . . 6 |- ( 2 x. ( 1 / 2 ) ) = 1
7773, 76syl6eq 2672 . . . . 5 |- ( ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) /\ ( y = ( 1 / 2 ) /\ z e. ( 0 [,] 1 ) ) ) -> ( 2 x. y ) = 1 )
78 retopon 22567 . . . . . . . 8 |- ( topGen ` ran (,) ) e. (TopOn ` RR )
79 iccssre 12255 . . . . . . . . 9 |- ( ( 0 e. RR /\ ( 1 / 2 ) e. RR ) -> ( 0 [,] ( 1 / 2 ) ) C_ RR )
8060, 64, 79mp2an 708 . . . . . . . 8 |- ( 0 [,] ( 1 / 2 ) ) C_ RR
81 resttopon 20965 . . . . . . . 8 |- ( ( ( topGen ` ran (,) ) e. (TopOn ` RR ) /\ ( 0 [,] ( 1 / 2 ) ) C_ RR ) -> ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) e. (TopOn ` ( 0 [,] ( 1 / 2 ) ) ) )
8278, 80, 81mp2an 708 . . . . . . 7 |- ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) e. (TopOn ` ( 0 [,] ( 1 / 2 ) ) )
8382a1i 11 . . . . . 6 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) e. (TopOn ` ( 0 [,] ( 1 / 2 ) ) ) )
8483, 51cnmpt1st 21471 . . . . . 6 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( y e. ( 0 [,] ( 1 / 2 ) ) , z e. ( 0 [,] 1 ) |-> y ) e. ( ( ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) tX II ) Cn ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) ) )
8557iihalf1cn 22731 . . . . . . 7 |- ( x e. ( 0 [,] ( 1 / 2 ) ) |-> ( 2 x. x ) ) e. ( ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) Cn II )
8685a1i 11 . . . . . 6 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( x e. ( 0 [,] ( 1 / 2 ) ) |-> ( 2 x. x ) ) e. ( ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) Cn II ) )
87 oveq2 6658 . . . . . 6 |- ( x = y -> ( 2 x. x ) = ( 2 x. y ) )
8883, 51, 84, 83, 86, 87cnmpt21 21474 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( y e. ( 0 [,] ( 1 / 2 ) ) , z e. ( 0 [,] 1 ) |-> ( 2 x. y ) ) e. ( ( ( ( topGen ` ran (,) ) ↾t ( 0 [,] ( 1 / 2 ) ) ) tX II ) Cn II ) )
89 iccssre 12255 . . . . . . . . 9 |- ( ( ( 1 / 2 ) e. RR /\ 1 e. RR ) -> ( ( 1 / 2 ) [,] 1 ) C_ RR )
9064, 62, 89mp2an 708 . . . . . . . 8 |- ( ( 1 / 2 ) [,] 1 ) C_ RR
91 resttopon 20965 . . . . . . . 8 |- ( ( ( topGen ` ran (,) ) e. (TopOn ` RR ) /\ ( ( 1 / 2 ) [,] 1 ) C_ RR ) -> ( ( topGen ` ran (,) ) ↾t ( ( 1 / 2 ) [,] 1 ) ) e. (TopOn ` ( ( 1 / 2 ) [,] 1 ) ) )
9278, 90, 91mp2an 708 . . . . . . 7 |- ( ( topGen ` ran (,) ) ↾t ( ( 1 / 2 ) [,] 1 ) ) e. (TopOn ` ( ( 1 / 2 ) [,] 1 ) )
9392a1i 11 . . . . . 6 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( ( topGen ` ran (,) ) ↾t ( ( 1 / 2 ) [,] 1 ) ) e. (TopOn ` ( ( 1 / 2 ) [,] 1 ) ) )
948a1i 11 . . . . . 6 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> 1 e. ( 0 [,] 1 ) )
9593, 51, 51, 94cnmpt2c 21473 . . . . 5 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( y e. ( ( 1 / 2 ) [,] 1 ) , z e. ( 0 [,] 1 ) |-> 1 ) e. ( ( ( ( topGen ` ran (,) ) ↾t ( ( 1 / 2 ) [,] 1 ) ) tX II ) Cn II ) )
9656, 57, 58, 59, 61, 63, 71, 51, 77, 88, 95cnmpt2pc 22727 . . . 4 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( y e. ( 0 [,] 1 ) , z e. ( 0 [,] 1 ) |-> if ( y <_ ( 1 / 2 ) , ( 2 x. y ) , 1 ) ) e. ( ( II tX II ) Cn II ) )
97 breq1 4656 . . . . . 6 |- ( y = x -> ( y <_ ( 1 / 2 ) <-> x <_ ( 1 / 2 ) ) )
98 oveq2 6658 . . . . . 6 |- ( y = x -> ( 2 x. y ) = ( 2 x. x ) )
9997, 98ifbieq1d 4109 . . . . 5 |- ( y = x -> if ( y <_ ( 1 / 2 ) , ( 2 x. y ) , 1 ) = if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) )
10099adantr 481 . . . 4 |- ( ( y = x /\ z = 0 ) -> if ( y <_ ( 1 / 2 ) , ( 2 x. y ) , 1 ) = if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) )
10151, 52, 55, 51, 51, 96, 100cnmpt12 21470 . . 3 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) e. ( II Cn II ) )
102 id 22 . . . . . . . 8 |- ( x = 0 -> x = 0 )
103102, 66syl6eqbr 4692 . . . . . . 7 |- ( x = 0 -> x <_ ( 1 / 2 ) )
104103, 32syl 17 . . . . . 6 |- ( x = 0 -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) = ( 2 x. x ) )
105 oveq2 6658 . . . . . . 7 |- ( x = 0 -> ( 2 x. x ) = ( 2 x. 0 ) )
106 2t0e0 11183 . . . . . . 7 |- ( 2 x. 0 ) = 0
107105, 106syl6eq 2672 . . . . . 6 |- ( x = 0 -> ( 2 x. x ) = 0 )
108104, 107eqtrd 2656 . . . . 5 |- ( x = 0 -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) = 0 )
109 eqid 2622 . . . . 5 |- ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) = ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) )
110 c0ex 10034 . . . . 5 |- 0 e. _V
111108, 109, 110fvmpt 6282 . . . 4 |- ( 0 e. ( 0 [,] 1 ) -> ( ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ` 0 ) = 0 )
11253, 111mp1i 13 . . 3 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ` 0 ) = 0 )
11364, 62ltnlei 10158 . . . . . . . 8 |- ( ( 1 / 2 ) < 1 <-> -. 1 <_ ( 1 / 2 ) )
11467, 113mpbi 220 . . . . . . 7 |- -. 1 <_ ( 1 / 2 )
115 breq1 4656 . . . . . . 7 |- ( x = 1 -> ( x <_ ( 1 / 2 ) <-> 1 <_ ( 1 / 2 ) ) )
116114, 115mtbiri 317 . . . . . 6 |- ( x = 1 -> -. x <_ ( 1 / 2 ) )
117116, 39syl 17 . . . . 5 |- ( x = 1 -> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) = 1 )
118 1ex 10035 . . . . 5 |- 1 e. _V
119117, 109, 118fvmpt 6282 . . . 4 |- ( 1 e. ( 0 [,] 1 ) -> ( ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ` 1 ) = 1 )
1208, 119mp1i 13 . . 3 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ` 1 ) = 1 )
12123, 101, 112, 120reparpht 22798 . 2 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F o. ( x e. ( 0 [,] 1 ) |-> if ( x <_ ( 1 / 2 ) , ( 2 x. x ) , 1 ) ) ) ( ~=ph ` J ) F )
12249, 121eqbrtrd 4675 1 |- ( ( F e. ( II Cn J ) /\ ( F ` 1 ) = Y ) -> ( F ( *p ` J ) P ) ( ~=ph ` J ) F )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3   -> wi 4   /\ wa 384   /\ w3a 1037   = wceq 1483   e. wcel 1990   C_ wss 3574   ifcif 4086   {csn 4177   U.cuni 4436   class class class wbr 4653   |-> cmpt 4729   X. cxp 5112   ran crn 5115   o. ccom 5118   -->wf 5884   ` cfv 5888  (class class class)co 6650   RRcr 9935   0cc0 9936   1c1 9937   x. cmul 9941   < clt 10074   <_ cle 10075   - cmin 10266   / cdiv 10684   2c2 11070   (,)cioo 12175   [,]cicc 12178   ↾t crest 16081   topGenctg 16098   Topctop 20698  TopOnctopon 20715   Cn ccn 21028   IIcii 22678   ~=ph cphtpc 22768   *pcpco 22800
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  ax-inf2 8538  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014  ax-addf 10015  ax-mulf 10016
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-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  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-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-iin 4523  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  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-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  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-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-of 6897  df-om 7066  df-1st 7168  df-2nd 7169  df-supp 7296  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-2o 7561  df-oadd 7564  df-er 7742  df-map 7859  df-ixp 7909  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-fsupp 8276  df-fi 8317  df-sup 8348  df-inf 8349  df-oi 8415  df-card 8765  df-cda 8990  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-4 11081  df-5 11082  df-6 11083  df-7 11084  df-8 11085  df-9 11086  df-n0 11293  df-z 11378  df-dec 11494  df-uz 11688  df-q 11789  df-rp 11833  df-xneg 11946  df-xadd 11947  df-xmul 11948  df-ioo 12179  df-icc 12182  df-fz 12327  df-fzo 12466  df-seq 12802  df-exp 12861  df-hash 13118  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-struct 15859  df-ndx 15860  df-slot 15861  df-base 15863  df-sets 15864  df-ress 15865  df-plusg 15954  df-mulr 15955  df-starv 15956  df-sca 15957  df-vsca 15958  df-ip 15959  df-tset 15960  df-ple 15961  df-ds 15964  df-unif 15965  df-hom 15966  df-cco 15967  df-rest 16083  df-topn 16084  df-0g 16102  df-gsum 16103  df-topgen 16104  df-pt 16105  df-prds 16108  df-xrs 16162  df-qtop 16167  df-imas 16168  df-xps 16170  df-mre 16246  df-mrc 16247  df-acs 16249  df-mgm 17242  df-sgrp 17284  df-mnd 17295  df-submnd 17336  df-mulg 17541  df-cntz 17750  df-cmn 18195  df-psmet 19738  df-xmet 19739  df-met 19740  df-bl 19741  df-mopn 19742  df-cnfld 19747  df-top 20699  df-topon 20716  df-topsp 20737  df-bases 20750  df-cld 20823  df-cn 21031  df-cnp 21032  df-tx 21365  df-hmeo 21558  df-xms 22125  df-ms 22126  df-tms 22127  df-ii 22680  df-htpy 22769  df-phtpy 22770  df-phtpc 22791  df-pco 22805
This theorem is referenced by:  pcophtb  22829  pi1xfrcnvlem  22856
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