Theorem brresg 4968

Description: Binary relation on a restriction. (Contributed by Mario Carneiro, 4-Nov-2015.)

Assertion

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

Proof of Theorem brresg

Step	Hyp	Ref	Expression
1		opelresg 4967	. 2 |- ( B e. V -> ( <. A , B >. e. ( C |` D ) <-> ( <. A , B >. e. C /\ A e. D ) ) )
2		df-br 4046	. 2 |- ( A ( C |` D ) B <-> <. A , B >. e. ( C |` D ) )
3		df-br 4046	. . 3 |- ( A C B <-> <. A , B >. e. C )
4	3	anbi1i 458	. 2 |- ( ( A C B /\ A e. D ) <-> ( <. A , B >. e. C /\ A e. D ) )
5	1, 2, 4	3bitr4g 223	1 |- ( B e. V -> ( A ( C |` D ) B <-> ( A C B /\ A e. D ) ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   e. wcel 2176   <.cop 3636   class class class wbr 4045   |` cres 4678

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 711  ax-5 1470  ax-7 1471  ax-gen 1472  ax-ie1 1516  ax-ie2 1517  ax-8 1527  ax-10 1528  ax-11 1529  ax-i12 1530  ax-bndl 1532  ax-4 1533  ax-17 1549  ax-i9 1553  ax-ial 1557  ax-i5r 1558  ax-14 2179  ax-ext 2187  ax-sep 4163  ax-pow 4219  ax-pr 4254

This theorem depends on definitions:  df-bi 117  df-3an 983  df-tru 1376  df-nf 1484  df-sb 1786  df-clab 2192  df-cleq 2198  df-clel 2201  df-nfc 2337  df-ral 2489  df-rex 2490  df-v 2774  df-un 3170  df-in 3172  df-ss 3179  df-pw 3618  df-sn 3639  df-pr 3640  df-op 3642  df-br 4046  df-opab 4107  df-xp 4682  df-res 4688

This theorem is referenced by: (None)