Theorem brabga 4124

Description: The law of concretion for a binary relation. (Contributed by Mario Carneiro, 19-Dec-2013.)

Hypotheses

Ref	Expression
opelopabga.1	|- ( ( x = A /\ y = B ) -> ( ph <-> ps ) )
brabga.2	|- R = { <. x , y >. | ph }

Assertion

Ref	Expression
brabga	|- ( ( A e. V /\ B e. W ) -> ( A R B <-> ps ) )

Distinct variable groups:   x, y, A   x, B, y   ps, x, y

Allowed substitution hints:   ph( x, y)   R( x, y)   V( x, y)   W( x, y)

Proof of Theorem brabga

Step	Hyp	Ref	Expression
1		df-br 3876	. . 3 |- ( A R B <-> <. A , B >. e. R )
2		brabga.2	. . . 4 |- R = { <. x , y >. | ph }
3	2	eleq2i 2166	. . 3 |- ( <. A , B >. e. R <-> <. A , B >. e. { <. x , y >. | ph } )
4	1, 3	bitri 183	. 2 |- ( A R B <-> <. A , B >. e. { <. x , y >. | ph } )
5		opelopabga.1	. . 3 |- ( ( x = A /\ y = B ) -> ( ph <-> ps ) )
6	5	opelopabga 4123	. 2 |- ( ( A e. V /\ B e. W ) -> ( <. A , B >. e. { <. x , y >. | ph } <-> ps ) )
7	4, 6	syl5bb 191	1 |- ( ( A e. V /\ B e. W ) -> ( A R B <-> ps ) )

Syntax hints:   -> wi 4   /\ wa 103   <-> wb 104   = wceq 1299   e. wcel 1448   <.cop 3477   class class class wbr 3875   {copab 3928

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 671  ax-5 1391  ax-7 1392  ax-gen 1393  ax-ie1 1437  ax-ie2 1438  ax-8 1450  ax-10 1451  ax-11 1452  ax-i12 1453  ax-bndl 1454  ax-4 1455  ax-14 1460  ax-17 1474  ax-i9 1478  ax-ial 1482  ax-i5r 1483  ax-ext 2082  ax-sep 3986  ax-pow 4038  ax-pr 4069

This theorem depends on definitions:  df-bi 116  df-3an 932  df-tru 1302  df-nf 1405  df-sb 1704  df-eu 1963  df-mo 1964  df-clab 2087  df-cleq 2093  df-clel 2096  df-nfc 2229  df-v 2643  df-un 3025  df-in 3027  df-ss 3034  df-pw 3459  df-sn 3480  df-pr 3481  df-op 3483  df-br 3876  df-opab 3930

This theorem is referenced by:  braba  4127  brabg  4129  epelg  4150  brcog  4644  fmptco  5518  ofrfval  5922  clim  10889  isstruct2im  11751  isstruct2r  11752