Theorem fvresd 5555

Description: The value of a restricted function, deduction version of fvres 5554. (Contributed by Glauco Siliprandi, 8-Apr-2021.)

Hypothesis

Ref	Expression
fvresd.1	|- ( ph -> A e. B )

Assertion

Ref	Expression
fvresd	|- ( ph -> ( ( F |` B ) ` A ) = ( F ` A ) )

Proof of Theorem fvresd

Step	Hyp	Ref	Expression
1		fvresd.1	. 2 |- ( ph -> A e. B )
2		fvres 5554	. 2 |- ( A e. B -> ( ( F |` B ) ` A ) = ( F ` A ) )
3	1, 2	syl 14	1 |- ( ph -> ( ( F |` B ) ` A ) = ( F ` A ) )

Syntax hints:   -> wi 4   = wceq 1364   e. wcel 2160   |` cres 4643   ` cfv 5231

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 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-14 2163  ax-ext 2171  ax-sep 4136  ax-pow 4189  ax-pr 4224

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-nf 1472  df-sb 1774  df-clab 2176  df-cleq 2182  df-clel 2185  df-nfc 2321  df-ral 2473  df-rex 2474  df-v 2754  df-un 3148  df-in 3150  df-ss 3157  df-pw 3592  df-sn 3613  df-pr 3614  df-op 3616  df-uni 3825  df-br 4019  df-opab 4080  df-xp 4647  df-res 4653  df-iota 5193  df-fv 5239

This theorem is referenced by:  difinfsn  7117  resmhm  12905  resghm  13160  upxp  14169  uptx  14171  reeflog  14681  relogef  14682  trilpolemlt1  15187