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Theorem ralrnmpt 5752
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 5452 . . . 4  |-  ( A. x  e.  A  B  e.  V  ->  F  Fn  A )
3 dfsbcq 3069 . . . . 5  |-  ( w  =  ( F `  z )  ->  ( [. w  /  y ]. ps  <->  [. ( F `  z )  /  y ]. ps ) )
43ralrn 5751 . . . 4  |-  ( F  Fn  A  ->  ( A. w  e.  ran  F
[. w  /  y ]. ps  <->  A. z  e.  A  [. ( F `  z
)  /  y ]. ps ) )
52, 4syl 15 . . 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 1619 . . . . 5  |-  F/ w ps
7 nfsbc1v 3086 . . . . 5  |-  F/ y
[. w  /  y ]. ps
8 sbceq1a 3077 . . . . 5  |-  ( y  =  w  ->  ( ps 
<-> 
[. w  /  y ]. ps ) )
96, 7, 8cbvral 2836 . . . 4  |-  ( A. y  e.  ran  F ps  <->  A. w  e.  ran  F [. w  /  y ]. ps )
109bicomi 193 . . 3  |-  ( A. w  e.  ran  F [. w  /  y ]. ps  <->  A. y  e.  ran  F ps )
11 nfmpt1 4190 . . . . . . 7  |-  F/_ x
( x  e.  A  |->  B )
121, 11nfcxfr 2491 . . . . . 6  |-  F/_ x F
13 nfcv 2494 . . . . . 6  |-  F/_ x
z
1412, 13nffv 5615 . . . . 5  |-  F/_ x
( F `  z
)
15 nfv 1619 . . . . 5  |-  F/ x ps
1614, 15nfsbc 3088 . . . 4  |-  F/ x [. ( F `  z
)  /  y ]. ps
17 nfv 1619 . . . 4  |-  F/ z
[. ( F `  x )  /  y ]. ps
18 fveq2 5608 . . . . 5  |-  ( z  =  x  ->  ( F `  z )  =  ( F `  x ) )
19 dfsbcq 3069 . . . . 5  |-  ( ( F `  z )  =  ( F `  x )  ->  ( [. ( F `  z
)  /  y ]. ps 
<-> 
[. ( F `  x )  /  y ]. ps ) )
2018, 19syl 15 . . . 4  |-  ( z  =  x  ->  ( [. ( F `  z
)  /  y ]. ps 
<-> 
[. ( F `  x )  /  y ]. ps ) )
2116, 17, 20cbvral 2836 . . 3  |-  ( A. z  e.  A  [. ( F `  z )  /  y ]. ps  <->  A. x  e.  A  [. ( F `  x )  /  y ]. ps )
225, 10, 213bitr3g 278 . 2  |-  ( A. x  e.  A  B  e.  V  ->  ( A. y  e.  ran  F ps  <->  A. x  e.  A  [. ( F `  x )  /  y ]. ps ) )
231fvmpt2 5691 . . . . . 6  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( F `  x
)  =  B )
24 dfsbcq 3069 . . . . . 6  |-  ( ( F `  x )  =  B  ->  ( [. ( F `  x
)  /  y ]. ps 
<-> 
[. B  /  y ]. ps ) )
2523, 24syl 15 . . . . 5  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( [. ( F `
 x )  / 
y ]. ps  <->  [. B  / 
y ]. ps ) )
26 ralrnmpt.2 . . . . . . 7  |-  ( y  =  B  ->  ( ps 
<->  ch ) )
2726sbcieg 3099 . . . . . 6  |-  ( B  e.  V  ->  ( [. B  /  y ]. ps  <->  ch ) )
2827adantl 452 . . . . 5  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( [. B  / 
y ]. ps  <->  ch )
)
2925, 28bitrd 244 . . . 4  |-  ( ( x  e.  A  /\  B  e.  V )  ->  ( [. ( F `
 x )  / 
y ]. ps  <->  ch )
)
3029ralimiaa 2693 . . 3  |-  ( A. x  e.  A  B  e.  V  ->  A. x  e.  A  ( [. ( F `  x )  /  y ]. ps  <->  ch ) )
31 ralbi 2755 . . 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 15 . 2  |-  ( A. x  e.  A  B  e.  V  ->  ( A. x  e.  A  [. ( F `  x )  /  y ]. ps  <->  A. x  e.  A  ch ) )
3322, 32bitrd 244 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    <-> wb 176    /\ wa 358    = wceq 1642    e. wcel 1710   A.wral 2619   [.wsbc 3067    e. cmpt 4158   ran crn 4772    Fn wfn 5332   ` cfv 5337
This theorem is referenced by:  rexrnmpt  5753  ac6num  8196  gsumwspan  14567  dfod2  14976  ordtbaslem  17024  ordtrest2lem  17039  cncmp  17225  ptpjopn  17412  ordthmeolem  17598  tsmsfbas  17912  tsmsf1o  17929  prdsxmetlem  18034  prdsbl  18139  metdsf  18455  metdsge  18456  minveclem1  18892  minveclem3b  18896  minveclem6  18902  mbflimsup  19125  xrlimcnp  20374  minvecolem1  21567  minvecolem5  21574  minvecolem6  21575  cvmsss2  24209  comppfsc  25631  prdsbnd  25840  rrnequiv  25882
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-13 1712  ax-14 1714  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1930  ax-ext 2339  ax-sep 4222  ax-nul 4230  ax-pow 4269  ax-pr 4295
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-eu 2213  df-mo 2214  df-clab 2345  df-cleq 2351  df-clel 2354  df-nfc 2483  df-ne 2523  df-ral 2624  df-rex 2625  df-rab 2628  df-v 2866  df-sbc 3068  df-csb 3158  df-dif 3231  df-un 3233  df-in 3235  df-ss 3242  df-nul 3532  df-if 3642  df-sn 3722  df-pr 3723  df-op 3725  df-uni 3909  df-br 4105  df-opab 4159  df-mpt 4160  df-id 4391  df-xp 4777  df-rel 4778  df-cnv 4779  df-co 4780  df-dm 4781  df-rn 4782  df-res 4783  df-ima 4784  df-iota 5301  df-fun 5339  df-fn 5340  df-fv 5345
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