Theorem brres 5064

Description: Binary relation on a restriction. (Contributed by NM, 12-Dec-2006.)

Hypothesis

Ref	Expression
opelres.1	|- B e. _V

Assertion

Ref	Expression
brres	|- ( A ( C |` D ) B <-> ( A C B /\ A e. D ) )

Proof of Theorem brres

Step	Hyp	Ref	Expression
1		opelres.1	. . 3 |- B e. _V
2	1	opelres 5063	. 2 |- ( <. A , B >. e. ( C |` D ) <-> ( <. A , B >. e. C /\ A e. D ) )
3		df-br 4126	. 2 |- ( A ( C |` D ) B <-> <. A , B >. e. ( C |` D ) )
4		df-br 4126	. . 3 |- ( A C B <-> <. A , B >. e. C )
5	4	anbi1i 462	. 2 |- ( ( A C B /\ A e. D ) <-> ( <. A , B >. e. C /\ A e. D ) )
6	2, 3, 5	3bitr4i 212	1 |- ( A ( C |` D ) B <-> ( A C B /\ A e. D ) )

Syntax hints:   /\ wa 104   <-> wb 105   e. wcel 2209   _Vcvv 2821   <.cop 3708   class class class wbr 4125   |` cres 4771

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 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-pow 4306  ax-pr 4341

This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-br 4126  df-opab 4188  df-xp 4775  df-res 4781

This theorem is referenced by:  dfres2  5110  dfima2  5123  poirr2  5175  cores  5286  resco  5287  rnco  5289  fnres  5495  fvres  5714  nfunsn  5727  1stconst  6447  2ndconst  6448