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Theorem ralrnmpt 5638
Description: A restricted quantifier over an image set. (Contributed by Mario Carneiro, 20-Aug-2015.)
Hypotheses
Ref Expression
ralrnmpt.1  |-  F  =  ( x  e.  A  |->  B )
ralrnmpt.2  |-  ( y  =  B  ->  ( ps 
<->  ch ) )
Assertion
Ref Expression
ralrnmpt  |-  ( A. x  e.  A  B  e.  V  ->  ( A. y  e.  ran  F ps  <->  A. x  e.  A  ch ) )
Distinct variable groups:    x, A    y, B    ch, y    y, F    ps, x
Allowed substitution hints:    ps( y)    ch( x)    A( y)    B( x)    F( x)    V( x, y)

Proof of Theorem ralrnmpt
Dummy variables  w  z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ralrnmpt.1 . . . . 5  |-  F  =  ( x  e.  A  |->  B )
21fnmpt 5324 . . . 4  |-  ( A. x  e.  A  B  e.  V  ->  F  Fn  A )
3 dfsbcq 2957 . . . . 5  |-  ( w  =  ( F `  z )  ->  ( [. w  /  y ]. ps  <->  [. ( F `  z )  /  y ]. ps ) )
43ralrn 5634 . . . 4  |-  ( F  Fn  A  ->  ( A. w  e.  ran  F
[. w  /  y ]. ps  <->  A. z  e.  A  [. ( F `  z
)  /  y ]. ps ) )
52, 4syl 14 . . 3  |-  ( A. x  e.  A  B  e.  V  ->  ( A. w  e.  ran  F [. w  /  y ]. ps  <->  A. z  e.  A  [. ( F `  z )  /  y ]. ps ) )
6 nfv 1521 . . . . 5  |-  F/ w ps
7 nfsbc1v 2973 . . . . 5  |-  F/ y
[. w  /  y ]. ps
8 sbceq1a 2964 . . . . 5  |-  ( y  =  w  ->  ( ps 
<-> 
[. w  /  y ]. ps ) )
96, 7, 8cbvral 2692 . . . 4  |-  ( A. y  e.  ran  F ps  <->  A. w  e.  ran  F [. w  /  y ]. ps )
109bicomi 131 . . 3  |-  ( A. w  e.  ran  F [. w  /  y ]. ps  <->  A. y  e.  ran  F ps )
11 nfmpt1 4082 . . . . . . 7  |-  F/_ x
( x  e.  A  |->  B )
121, 11nfcxfr 2309 . . . . . 6  |-  F/_ x F
13 nfcv 2312 . . . . . 6  |-  F/_ x
z
1412, 13nffv 5506 . . . . 5  |-  F/_ x
( F `  z
)
15 nfv 1521 . . . . 5  |-  F/ x ps
1614, 15nfsbc 2975 . . . 4  |-  F/ x [. ( F `  z
)  /  y ]. ps
17 nfv 1521 . . . 4  |-  F/ z
[. ( F `  x )  /  y ]. ps
18 fveq2 5496 . . . . 5  |-  ( z  =  x  ->  ( F `  z )  =  ( F `  x ) )
19 dfsbcq 2957 . . . . 5  |-  ( ( F `  z )  =  ( F `  x )  ->  ( [. ( F `  z
)  /  y ]. ps 
<-> 
[. ( F `  x )  /  y ]. ps ) )
2018, 19syl 14 . . . 4  |-  ( z  =  x  ->  ( [. ( F `  z
)  /  y ]. ps 
<-> 
[. ( F `  x )  /  y ]. ps ) )
2116, 17, 20cbvral 2692 . . 3  |-  ( A. z  e.  A  [. ( F `  z )  /  y ]. ps  <->  A. x  e.  A  [. ( F `  x )  /  y ]. ps )
225, 10, 213bitr3g 221 . 2  |-  ( A. x  e.  A  B  e.  V  ->  ( A. y  e.  ran  F ps  <->  A. x  e.  A  [. ( F `  x )  /  y ]. ps ) )
231fvmpt2 5579 . . . . . 6  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( F `  x
)  =  B )
24 dfsbcq 2957 . . . . . 6  |-  ( ( F `  x )  =  B  ->  ( [. ( F `  x
)  /  y ]. ps 
<-> 
[. B  /  y ]. ps ) )
2523, 24syl 14 . . . . 5  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( [. ( F `
 x )  / 
y ]. ps  <->  [. B  / 
y ]. ps ) )
26 ralrnmpt.2 . . . . . . 7  |-  ( y  =  B  ->  ( ps 
<->  ch ) )
2726sbcieg 2987 . . . . . 6  |-  ( B  e.  V  ->  ( [. B  /  y ]. ps  <->  ch ) )
2827adantl 275 . . . . 5  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( [. B  / 
y ]. ps  <->  ch )
)
2925, 28bitrd 187 . . . 4  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( [. ( F `
 x )  / 
y ]. ps  <->  ch )
)
3029ralimiaa 2532 . . 3  |-  ( A. x  e.  A  B  e.  V  ->  A. x  e.  A  ( [. ( F `  x )  /  y ]. ps  <->  ch ) )
31 ralbi 2602 . . 3  |-  ( A. x  e.  A  ( [. ( F `  x
)  /  y ]. ps 
<->  ch )  ->  ( A. x  e.  A  [. ( F `  x
)  /  y ]. ps 
<-> 
A. x  e.  A  ch ) )
3230, 31syl 14 . 2  |-  ( A. x  e.  A  B  e.  V  ->  ( A. x  e.  A  [. ( F `  x )  /  y ]. ps  <->  A. x  e.  A  ch ) )
3322, 32bitrd 187 1  |-  ( A. x  e.  A  B  e.  V  ->  ( A. y  e.  ran  F ps  <->  A. x  e.  A  ch ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    = wceq 1348    e. wcel 2141   A.wral 2448   [.wsbc 2955    |-> cmpt 4050   ran crn 4612    Fn wfn 5193   ` cfv 5198
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-14 2144  ax-ext 2152  ax-sep 4107  ax-pow 4160  ax-pr 4194
This theorem depends on definitions:  df-bi 116  df-3an 975  df-tru 1351  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ral 2453  df-rex 2454  df-v 2732  df-sbc 2956  df-csb 3050  df-un 3125  df-in 3127  df-ss 3134  df-pw 3568  df-sn 3589  df-pr 3590  df-op 3592  df-uni 3797  df-br 3990  df-opab 4051  df-mpt 4052  df-id 4278  df-xp 4617  df-rel 4618  df-cnv 4619  df-co 4620  df-dm 4621  df-rn 4622  df-iota 5160  df-fun 5200  df-fn 5201  df-fv 5206
This theorem is referenced by: (None)
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