MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  qtopcn Structured version   Unicode version

Theorem qtopcn 20088
Description: Universal property of a quotient map. (Contributed by Mario Carneiro, 23-Mar-2015.)
Assertion
Ref Expression
qtopcn  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( G  e.  ( ( J qTop  F )  Cn  K )  <->  ( G  o.  F )  e.  ( J  Cn  K ) ) )

Proof of Theorem qtopcn
Dummy variable  x is distinct from all other variables.
StepHypRef Expression
1 simplll 759 . . . . . . 7  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  J  e.  (TopOn `  X )
)
2 simplrl 761 . . . . . . 7  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  F : X -onto-> Y )
3 elqtop3 20077 . . . . . . 7  |-  ( ( J  e.  (TopOn `  X )  /\  F : X -onto-> Y )  ->  (
( `' G "
x )  e.  ( J qTop  F )  <->  ( ( `' G " x ) 
C_  Y  /\  ( `' F " ( `' G " x ) )  e.  J ) ) )
41, 2, 3syl2anc 661 . . . . . 6  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  (
( `' G "
x )  e.  ( J qTop  F )  <->  ( ( `' G " x ) 
C_  Y  /\  ( `' F " ( `' G " x ) )  e.  J ) ) )
5 cnvimass 5347 . . . . . . . 8  |-  ( `' G " x ) 
C_  dom  G
6 simplrr 762 . . . . . . . . 9  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  G : Y --> Z )
7 fdm 5725 . . . . . . . . 9  |-  ( G : Y --> Z  ->  dom  G  =  Y )
86, 7syl 16 . . . . . . . 8  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  dom  G  =  Y )
95, 8syl5sseq 3537 . . . . . . 7  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  ( `' G " x ) 
C_  Y )
109biantrurd 508 . . . . . 6  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  (
( `' F "
( `' G "
x ) )  e.  J  <->  ( ( `' G " x ) 
C_  Y  /\  ( `' F " ( `' G " x ) )  e.  J ) ) )
114, 10bitr4d 256 . . . . 5  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  (
( `' G "
x )  e.  ( J qTop  F )  <->  ( `' F " ( `' G " x ) )  e.  J ) )
12 cnvco 5178 . . . . . . . 8  |-  `' ( G  o.  F )  =  ( `' F  o.  `' G )
1312imaeq1i 5324 . . . . . . 7  |-  ( `' ( G  o.  F
) " x )  =  ( ( `' F  o.  `' G
) " x )
14 imaco 5502 . . . . . . 7  |-  ( ( `' F  o.  `' G ) " x
)  =  ( `' F " ( `' G " x ) )
1513, 14eqtri 2472 . . . . . 6  |-  ( `' ( G  o.  F
) " x )  =  ( `' F " ( `' G "
x ) )
1615eleq1i 2520 . . . . 5  |-  ( ( `' ( G  o.  F ) " x
)  e.  J  <->  ( `' F " ( `' G " x ) )  e.  J )
1711, 16syl6bbr 263 . . . 4  |-  ( ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z ) )  /\  ( F : X -onto-> Y  /\  G : Y --> Z ) )  /\  x  e.  K )  ->  (
( `' G "
x )  e.  ( J qTop  F )  <->  ( `' ( G  o.  F
) " x )  e.  J ) )
1817ralbidva 2879 . . 3  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( A. x  e.  K  ( `' G " x )  e.  ( J qTop  F )  <->  A. x  e.  K  ( `' ( G  o.  F
) " x )  e.  J ) )
19 simprr 757 . . . 4  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  ->  G : Y --> Z )
2019biantrurd 508 . . 3  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( A. x  e.  K  ( `' G " x )  e.  ( J qTop  F )  <->  ( G : Y --> Z  /\  A. x  e.  K  ( `' G " x )  e.  ( J qTop  F
) ) ) )
21 fof 5785 . . . . . 6  |-  ( F : X -onto-> Y  ->  F : X --> Y )
2221ad2antrl 727 . . . . 5  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  ->  F : X --> Y )
23 fco 5731 . . . . 5  |-  ( ( G : Y --> Z  /\  F : X --> Y )  ->  ( G  o.  F ) : X --> Z )
2419, 22, 23syl2anc 661 . . . 4  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( G  o.  F
) : X --> Z )
2524biantrurd 508 . . 3  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( A. x  e.  K  ( `' ( G  o.  F )
" x )  e.  J  <->  ( ( G  o.  F ) : X --> Z  /\  A. x  e.  K  ( `' ( G  o.  F ) " x
)  e.  J ) ) )
2618, 20, 253bitr3d 283 . 2  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( ( G : Y
--> Z  /\  A. x  e.  K  ( `' G " x )  e.  ( J qTop  F ) )  <->  ( ( G  o.  F ) : X --> Z  /\  A. x  e.  K  ( `' ( G  o.  F ) " x
)  e.  J ) ) )
27 qtoptopon 20078 . . . 4  |-  ( ( J  e.  (TopOn `  X )  /\  F : X -onto-> Y )  ->  ( J qTop  F )  e.  (TopOn `  Y ) )
2827ad2ant2r 746 . . 3  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( J qTop  F )  e.  (TopOn `  Y )
)
29 simplr 755 . . 3  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  ->  K  e.  (TopOn `  Z
) )
30 iscn 19609 . . 3  |-  ( ( ( J qTop  F )  e.  (TopOn `  Y
)  /\  K  e.  (TopOn `  Z ) )  ->  ( G  e.  ( ( J qTop  F
)  Cn  K )  <-> 
( G : Y --> Z  /\  A. x  e.  K  ( `' G " x )  e.  ( J qTop  F ) ) ) )
3128, 29, 30syl2anc 661 . 2  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( G  e.  ( ( J qTop  F )  Cn  K )  <->  ( G : Y --> Z  /\  A. x  e.  K  ( `' G " x )  e.  ( J qTop  F
) ) ) )
32 iscn 19609 . . 3  |-  ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  ->  ( ( G  o.  F )  e.  ( J  Cn  K
)  <->  ( ( G  o.  F ) : X --> Z  /\  A. x  e.  K  ( `' ( G  o.  F ) " x
)  e.  J ) ) )
3332adantr 465 . 2  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( ( G  o.  F )  e.  ( J  Cn  K )  <-> 
( ( G  o.  F ) : X --> Z  /\  A. x  e.  K  ( `' ( G  o.  F )
" x )  e.  J ) ) )
3426, 31, 333bitr4d 285 1  |-  ( ( ( J  e.  (TopOn `  X )  /\  K  e.  (TopOn `  Z )
)  /\  ( F : X -onto-> Y  /\  G : Y
--> Z ) )  -> 
( G  e.  ( ( J qTop  F )  Cn  K )  <->  ( G  o.  F )  e.  ( J  Cn  K ) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    = wceq 1383    e. wcel 1804   A.wral 2793    C_ wss 3461   `'ccnv 4988   dom cdm 4989   "cima 4992    o. ccom 4993   -->wf 5574   -onto->wfo 5576   ` cfv 5578  (class class class)co 6281   qTop cqtop 14777  TopOnctopon 19268    Cn ccn 19598
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1605  ax-4 1618  ax-5 1691  ax-6 1734  ax-7 1776  ax-8 1806  ax-9 1808  ax-10 1823  ax-11 1828  ax-12 1840  ax-13 1985  ax-ext 2421  ax-rep 4548  ax-sep 4558  ax-nul 4566  ax-pow 4615  ax-pr 4676  ax-un 6577
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 976  df-tru 1386  df-ex 1600  df-nf 1604  df-sb 1727  df-eu 2272  df-mo 2273  df-clab 2429  df-cleq 2435  df-clel 2438  df-nfc 2593  df-ne 2640  df-ral 2798  df-rex 2799  df-reu 2800  df-rab 2802  df-v 3097  df-sbc 3314  df-csb 3421  df-dif 3464  df-un 3466  df-in 3468  df-ss 3475  df-nul 3771  df-if 3927  df-pw 3999  df-sn 4015  df-pr 4017  df-op 4021  df-uni 4235  df-iun 4317  df-br 4438  df-opab 4496  df-mpt 4497  df-id 4785  df-xp 4995  df-rel 4996  df-cnv 4997  df-co 4998  df-dm 4999  df-rn 5000  df-res 5001  df-ima 5002  df-iota 5541  df-fun 5580  df-fn 5581  df-f 5582  df-f1 5583  df-fo 5584  df-f1o 5585  df-fv 5586  df-ov 6284  df-oprab 6285  df-mpt2 6286  df-map 7424  df-qtop 14781  df-top 19272  df-topon 19275  df-cn 19601
This theorem is referenced by:  qtopeu  20090
  Copyright terms: Public domain W3C validator