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Theorem isores2 5964
Description: An isomorphism from one well-order to another can be restricted on either well-order. (Contributed by Mario Carneiro, 15-Jan-2013.)
Assertion
Ref Expression
isores2  |-  ( H 
Isom  R ,  S  ( A ,  B )  <-> 
H  Isom  R , 
( S  i^i  ( B  X.  B ) ) ( A ,  B
) )

Proof of Theorem isores2
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 f1of 5592 . . . . . . . 8  |-  ( H : A -1-1-onto-> B  ->  H : A
--> B )
2 ffvelcdm 5788 . . . . . . . . . 10  |-  ( ( H : A --> B  /\  x  e.  A )  ->  ( H `  x
)  e.  B )
32adantrr 479 . . . . . . . . 9  |-  ( ( H : A --> B  /\  ( x  e.  A  /\  y  e.  A
) )  ->  ( H `  x )  e.  B )
4 ffvelcdm 5788 . . . . . . . . . 10  |-  ( ( H : A --> B  /\  y  e.  A )  ->  ( H `  y
)  e.  B )
54adantrl 478 . . . . . . . . 9  |-  ( ( H : A --> B  /\  ( x  e.  A  /\  y  e.  A
) )  ->  ( H `  y )  e.  B )
6 brinxp 4800 . . . . . . . . 9  |-  ( ( ( H `  x
)  e.  B  /\  ( H `  y )  e.  B )  -> 
( ( H `  x ) S ( H `  y )  <-> 
( H `  x
) ( S  i^i  ( B  X.  B
) ) ( H `
 y ) ) )
73, 5, 6syl2anc 411 . . . . . . . 8  |-  ( ( H : A --> B  /\  ( x  e.  A  /\  y  e.  A
) )  ->  (
( H `  x
) S ( H `
 y )  <->  ( H `  x ) ( S  i^i  ( B  X.  B ) ) ( H `  y ) ) )
81, 7sylan 283 . . . . . . 7  |-  ( ( H : A -1-1-onto-> B  /\  ( x  e.  A  /\  y  e.  A
) )  ->  (
( H `  x
) S ( H `
 y )  <->  ( H `  x ) ( S  i^i  ( B  X.  B ) ) ( H `  y ) ) )
98anassrs 400 . . . . . 6  |-  ( ( ( H : A -1-1-onto-> B  /\  x  e.  A
)  /\  y  e.  A )  ->  (
( H `  x
) S ( H `
 y )  <->  ( H `  x ) ( S  i^i  ( B  X.  B ) ) ( H `  y ) ) )
109bibi2d 232 . . . . 5  |-  ( ( ( H : A -1-1-onto-> B  /\  x  e.  A
)  /\  y  e.  A )  ->  (
( x R y  <-> 
( H `  x
) S ( H `
 y ) )  <-> 
( x R y  <-> 
( H `  x
) ( S  i^i  ( B  X.  B
) ) ( H `
 y ) ) ) )
1110ralbidva 2529 . . . 4  |-  ( ( H : A -1-1-onto-> B  /\  x  e.  A )  ->  ( A. y  e.  A  ( x R y  <->  ( H `  x ) S ( H `  y ) )  <->  A. y  e.  A  ( x R y  <-> 
( H `  x
) ( S  i^i  ( B  X.  B
) ) ( H `
 y ) ) ) )
1211ralbidva 2529 . . 3  |-  ( H : A -1-1-onto-> B  ->  ( A. x  e.  A  A. y  e.  A  (
x R y  <->  ( H `  x ) S ( H `  y ) )  <->  A. x  e.  A  A. y  e.  A  ( x R y  <-> 
( H `  x
) ( S  i^i  ( B  X.  B
) ) ( H `
 y ) ) ) )
1312pm5.32i 454 . 2  |-  ( ( H : A -1-1-onto-> B  /\  A. x  e.  A  A. y  e.  A  (
x R y  <->  ( H `  x ) S ( H `  y ) ) )  <->  ( H : A -1-1-onto-> B  /\  A. x  e.  A  A. y  e.  A  ( x R y  <->  ( H `  x ) ( S  i^i  ( B  X.  B ) ) ( H `  y ) ) ) )
14 df-isom 5342 . 2  |-  ( H 
Isom  R ,  S  ( A ,  B )  <-> 
( H : A -1-1-onto-> B  /\  A. x  e.  A  A. y  e.  A  ( x R y  <-> 
( H `  x
) S ( H `
 y ) ) ) )
15 df-isom 5342 . 2  |-  ( H 
Isom  R ,  ( S  i^i  ( B  X.  B ) ) ( A ,  B )  <-> 
( H : A -1-1-onto-> B  /\  A. x  e.  A  A. y  e.  A  ( x R y  <-> 
( H `  x
) ( S  i^i  ( B  X.  B
) ) ( H `
 y ) ) ) )
1613, 14, 153bitr4i 212 1  |-  ( H 
Isom  R ,  S  ( A ,  B )  <-> 
H  Isom  R , 
( S  i^i  ( B  X.  B ) ) ( A ,  B
) )
Colors of variables: wff set class
Syntax hints:    /\ wa 104    <-> wb 105    e. wcel 2202   A.wral 2511    i^i cin 3200   class class class wbr 4093    X. cxp 4729   -->wf 5329   -1-1-onto->wf1o 5332   ` cfv 5333    Isom wiso 5334
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-14 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516  df-rex 2517  df-v 2805  df-sbc 3033  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-br 4094  df-opab 4156  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-f1o 5340  df-fv 5341  df-isom 5342
This theorem is referenced by:  isores1  5965
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