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Theorem f1oiso2 6602
Description: Any one-to-one onto function determines an isomorphism with an induced relation  S. (Contributed by Mario Carneiro, 9-Mar-2013.)
Hypothesis
Ref Expression
f1oiso2.1  |-  S  =  { <. x ,  y
>.  |  ( (
x  e.  B  /\  y  e.  B )  /\  ( `' H `  x ) R ( `' H `  y ) ) }
Assertion
Ref Expression
f1oiso2  |-  ( H : A -1-1-onto-> B  ->  H  Isom  R ,  S  ( A ,  B ) )
Distinct variable groups:    x, A, y    x, B, y    x, H, y    x, R, y
Allowed substitution hints:    S( x, y)

Proof of Theorem f1oiso2
Dummy variables  w  z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 f1oiso2.1 . . 3  |-  S  =  { <. x ,  y
>.  |  ( (
x  e.  B  /\  y  e.  B )  /\  ( `' H `  x ) R ( `' H `  y ) ) }
2 f1ocnvdm 6540 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  x  e.  B )  ->  ( `' H `  x )  e.  A
)
32adantrr 753 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
) )  ->  ( `' H `  x )  e.  A )
433adant3 1081 . . . . . . 7  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  -> 
( `' H `  x )  e.  A
)
5 f1ocnvdm 6540 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  y  e.  B )  ->  ( `' H `  y )  e.  A
)
65adantrl 752 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
) )  ->  ( `' H `  y )  e.  A )
763adant3 1081 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  -> 
( `' H `  y )  e.  A
)
8 f1ocnvfv2 6533 . . . . . . . . . . 11  |-  ( ( H : A -1-1-onto-> B  /\  x  e.  B )  ->  ( H `  ( `' H `  x ) )  =  x )
98eqcomd 2628 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  x  e.  B )  ->  x  =  ( H `
 ( `' H `  x ) ) )
10 f1ocnvfv2 6533 . . . . . . . . . . 11  |-  ( ( H : A -1-1-onto-> B  /\  y  e.  B )  ->  ( H `  ( `' H `  y ) )  =  y )
1110eqcomd 2628 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  y  e.  B )  ->  y  =  ( H `
 ( `' H `  y ) ) )
129, 11anim12dan 882 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
) )  ->  (
x  =  ( H `
 ( `' H `  x ) )  /\  y  =  ( H `  ( `' H `  y ) ) ) )
13123adant3 1081 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  -> 
( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  ( `' H `  y ) ) ) )
14 simp3 1063 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  -> 
( `' H `  x ) R ( `' H `  y ) )
15 fveq2 6191 . . . . . . . . . . . 12  |-  ( w  =  ( `' H `  y )  ->  ( H `  w )  =  ( H `  ( `' H `  y ) ) )
1615eqeq2d 2632 . . . . . . . . . . 11  |-  ( w  =  ( `' H `  y )  ->  (
y  =  ( H `
 w )  <->  y  =  ( H `  ( `' H `  y ) ) ) )
1716anbi2d 740 . . . . . . . . . 10  |-  ( w  =  ( `' H `  y )  ->  (
( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  w
) )  <->  ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  ( `' H `  y ) ) ) ) )
18 breq2 4657 . . . . . . . . . 10  |-  ( w  =  ( `' H `  y )  ->  (
( `' H `  x ) R w  <-> 
( `' H `  x ) R ( `' H `  y ) ) )
1917, 18anbi12d 747 . . . . . . . . 9  |-  ( w  =  ( `' H `  y )  ->  (
( ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  w
) )  /\  ( `' H `  x ) R w )  <->  ( (
x  =  ( H `
 ( `' H `  x ) )  /\  y  =  ( H `  ( `' H `  y ) ) )  /\  ( `' H `  x ) R ( `' H `  y ) ) ) )
2019rspcev 3309 . . . . . . . 8  |-  ( ( ( `' H `  y )  e.  A  /\  ( ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  ( `' H `  y ) ) )  /\  ( `' H `  x ) R ( `' H `  y ) ) )  ->  E. w  e.  A  ( ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  w
) )  /\  ( `' H `  x ) R w ) )
217, 13, 14, 20syl12anc 1324 . . . . . . 7  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  ->  E. w  e.  A  ( ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  w
) )  /\  ( `' H `  x ) R w ) )
22 fveq2 6191 . . . . . . . . . . . 12  |-  ( z  =  ( `' H `  x )  ->  ( H `  z )  =  ( H `  ( `' H `  x ) ) )
2322eqeq2d 2632 . . . . . . . . . . 11  |-  ( z  =  ( `' H `  x )  ->  (
x  =  ( H `
 z )  <->  x  =  ( H `  ( `' H `  x ) ) ) )
2423anbi1d 741 . . . . . . . . . 10  |-  ( z  =  ( `' H `  x )  ->  (
( x  =  ( H `  z )  /\  y  =  ( H `  w ) )  <->  ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  w
) ) ) )
25 breq1 4656 . . . . . . . . . 10  |-  ( z  =  ( `' H `  x )  ->  (
z R w  <->  ( `' H `  x ) R w ) )
2624, 25anbi12d 747 . . . . . . . . 9  |-  ( z  =  ( `' H `  x )  ->  (
( ( x  =  ( H `  z
)  /\  y  =  ( H `  w ) )  /\  z R w )  <->  ( (
x  =  ( H `
 ( `' H `  x ) )  /\  y  =  ( H `  w ) )  /\  ( `' H `  x ) R w ) ) )
2726rexbidv 3052 . . . . . . . 8  |-  ( z  =  ( `' H `  x )  ->  ( E. w  e.  A  ( ( x  =  ( H `  z
)  /\  y  =  ( H `  w ) )  /\  z R w )  <->  E. w  e.  A  ( (
x  =  ( H `
 ( `' H `  x ) )  /\  y  =  ( H `  w ) )  /\  ( `' H `  x ) R w ) ) )
2827rspcev 3309 . . . . . . 7  |-  ( ( ( `' H `  x )  e.  A  /\  E. w  e.  A  ( ( x  =  ( H `  ( `' H `  x ) )  /\  y  =  ( H `  w
) )  /\  ( `' H `  x ) R w ) )  ->  E. z  e.  A  E. w  e.  A  ( ( x  =  ( H `  z
)  /\  y  =  ( H `  w ) )  /\  z R w ) )
294, 21, 28syl2anc 693 . . . . . 6  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  ->  E. z  e.  A  E. w  e.  A  ( ( x  =  ( H `  z
)  /\  y  =  ( H `  w ) )  /\  z R w ) )
30293expib 1268 . . . . 5  |-  ( H : A -1-1-onto-> B  ->  ( (
( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  ->  E. z  e.  A  E. w  e.  A  ( ( x  =  ( H `  z
)  /\  y  =  ( H `  w ) )  /\  z R w ) ) )
31 simp3ll 1132 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  x  =  ( H `  z ) )
32 simp1 1061 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  H : A -1-1-onto-> B
)
33 simp2l 1087 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  z  e.  A
)
34 f1of 6137 . . . . . . . . . . 11  |-  ( H : A -1-1-onto-> B  ->  H : A
--> B )
3534ffvelrnda 6359 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  z  e.  A )  ->  ( H `  z
)  e.  B )
3632, 33, 35syl2anc 693 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( H `  z )  e.  B
)
3731, 36eqeltrd 2701 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  x  e.  B
)
38 simp3lr 1133 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  y  =  ( H `  w ) )
39 simp2r 1088 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  w  e.  A
)
4034ffvelrnda 6359 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  w  e.  A )  ->  ( H `  w
)  e.  B )
4132, 39, 40syl2anc 693 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( H `  w )  e.  B
)
4238, 41eqeltrd 2701 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  y  e.  B
)
43 simp3r 1090 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  z R w )
4431eqcomd 2628 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( H `  z )  =  x )
45 f1ocnvfv 6534 . . . . . . . . . . 11  |-  ( ( H : A -1-1-onto-> B  /\  z  e.  A )  ->  ( ( H `  z )  =  x  ->  ( `' H `  x )  =  z ) )
4632, 33, 45syl2anc 693 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( ( H `
 z )  =  x  ->  ( `' H `  x )  =  z ) )
4744, 46mpd 15 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( `' H `  x )  =  z )
4838eqcomd 2628 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( H `  w )  =  y )
49 f1ocnvfv 6534 . . . . . . . . . . 11  |-  ( ( H : A -1-1-onto-> B  /\  w  e.  A )  ->  ( ( H `  w )  =  y  ->  ( `' H `  y )  =  w ) )
5032, 39, 49syl2anc 693 . . . . . . . . . 10  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( ( H `
 w )  =  y  ->  ( `' H `  y )  =  w ) )
5148, 50mpd 15 . . . . . . . . 9  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( `' H `  y )  =  w )
5243, 47, 513brtr4d 4685 . . . . . . . 8  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( `' H `  x ) R ( `' H `  y ) )
5337, 42, 52jca31 557 . . . . . . 7  |-  ( ( H : A -1-1-onto-> B  /\  ( z  e.  A  /\  w  e.  A
)  /\  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) )  ->  ( ( x  e.  B  /\  y  e.  B )  /\  ( `' H `  x ) R ( `' H `  y ) ) )
54533exp 1264 . . . . . 6  |-  ( H : A -1-1-onto-> B  ->  ( (
z  e.  A  /\  w  e.  A )  ->  ( ( ( x  =  ( H `  z )  /\  y  =  ( H `  w ) )  /\  z R w )  -> 
( ( x  e.  B  /\  y  e.  B )  /\  ( `' H `  x ) R ( `' H `  y ) ) ) ) )
5554rexlimdvv 3037 . . . . 5  |-  ( H : A -1-1-onto-> B  ->  ( E. z  e.  A  E. w  e.  A  (
( x  =  ( H `  z )  /\  y  =  ( H `  w ) )  /\  z R w )  ->  (
( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) ) ) )
5630, 55impbid 202 . . . 4  |-  ( H : A -1-1-onto-> B  ->  ( (
( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) )  <->  E. z  e.  A  E. w  e.  A  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) ) )
5756opabbidv 4716 . . 3  |-  ( H : A -1-1-onto-> B  ->  { <. x ,  y >.  |  ( ( x  e.  B  /\  y  e.  B
)  /\  ( `' H `  x ) R ( `' H `  y ) ) }  =  { <. x ,  y >.  |  E. z  e.  A  E. w  e.  A  (
( x  =  ( H `  z )  /\  y  =  ( H `  w ) )  /\  z R w ) } )
581, 57syl5eq 2668 . 2  |-  ( H : A -1-1-onto-> B  ->  S  =  { <. x ,  y
>.  |  E. z  e.  A  E. w  e.  A  ( (
x  =  ( H `
 z )  /\  y  =  ( H `  w ) )  /\  z R w ) } )
59 f1oiso 6601 . 2  |-  ( ( H : A -1-1-onto-> B  /\  S  =  { <. x ,  y >.  |  E. z  e.  A  E. w  e.  A  (
( x  =  ( H `  z )  /\  y  =  ( H `  w ) )  /\  z R w ) } )  ->  H  Isom  R ,  S  ( A ,  B ) )
6058, 59mpdan 702 1  |-  ( H : A -1-1-onto-> B  ->  H  Isom  R ,  S  ( A ,  B ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 384    /\ w3a 1037    = wceq 1483    e. wcel 1990   E.wrex 2913   class class class wbr 4653   {copab 4712   `'ccnv 5113   -1-1-onto->wf1o 5887   ` cfv 5888    Isom wiso 5889
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
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-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-opab 4713  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-isom 5897
This theorem is referenced by:  fnwelem  7292
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