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Theorem fmptdf 5577
Description: A version of fmptd 5574 using bound-variable hypothesis instead of a distinct variable condition for  ph. (Contributed by Glauco Siliprandi, 29-Jun-2017.)
Hypotheses
Ref Expression
fmptdf.1  |-  F/ x ph
fmptdf.2  |-  ( (
ph  /\  x  e.  A )  ->  B  e.  C )
fmptdf.3  |-  F  =  ( x  e.  A  |->  B )
Assertion
Ref Expression
fmptdf  |-  ( ph  ->  F : A --> C )
Distinct variable groups:    x, A    x, C
Allowed substitution hints:    ph( x)    B( x)    F( x)

Proof of Theorem fmptdf
StepHypRef Expression
1 fmptdf.1 . . 3  |-  F/ x ph
2 fmptdf.2 . . . 4  |-  ( (
ph  /\  x  e.  A )  ->  B  e.  C )
32ex 114 . . 3  |-  ( ph  ->  ( x  e.  A  ->  B  e.  C ) )
41, 3ralrimi 2503 . 2  |-  ( ph  ->  A. x  e.  A  B  e.  C )
5 fmptdf.3 . . 3  |-  F  =  ( x  e.  A  |->  B )
65fmpt 5570 . 2  |-  ( A. x  e.  A  B  e.  C  <->  F : A --> C )
74, 6sylib 121 1  |-  ( ph  ->  F : A --> C )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    = wceq 1331   F/wnf 1436    e. wcel 1480   A.wral 2416    |-> cmpt 3989   -->wf 5119
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 698  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-10 1483  ax-11 1484  ax-i12 1485  ax-bndl 1486  ax-4 1487  ax-14 1492  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121  ax-sep 4046  ax-pow 4098  ax-pr 4131
This theorem depends on definitions:  df-bi 116  df-3an 964  df-tru 1334  df-nf 1437  df-sb 1736  df-eu 2002  df-mo 2003  df-clab 2126  df-cleq 2132  df-clel 2135  df-nfc 2270  df-ral 2421  df-rex 2422  df-rab 2425  df-v 2688  df-sbc 2910  df-un 3075  df-in 3077  df-ss 3084  df-pw 3512  df-sn 3533  df-pr 3534  df-op 3536  df-uni 3737  df-br 3930  df-opab 3990  df-mpt 3991  df-id 4215  df-xp 4545  df-rel 4546  df-cnv 4547  df-co 4548  df-dm 4549  df-rn 4550  df-res 4551  df-ima 4552  df-iota 5088  df-fun 5125  df-fn 5126  df-f 5127  df-fv 5131
This theorem is referenced by:  mkvprop  7032
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