Theorem opelopab2 4272

Description: Ordered pair membership in an ordered pair class abstraction. (Contributed by NM, 14-Oct-2007.) (Revised by Mario Carneiro, 19-Dec-2013.)

Hypotheses

Ref	Expression
opelopab2.1	|- ( x = A -> ( ph <-> ps ) )
opelopab2.2	|- ( y = B -> ( ps <-> ch ) )

Assertion

Ref	Expression
opelopab2	|- ( ( A e. C /\ B e. D ) -> ( <. A , B >. e. { <. x , y >. | ( ( x e. C /\ y e. D ) /\ ph ) } <-> ch ) )

Distinct variable groups:   x, y, A   x, B, y   x, C, y   x, D, y   ch, x, y

Allowed substitution hints:   ph( x, y)   ps( x, y)

Proof of Theorem opelopab2

Step	Hyp	Ref	Expression
1		opelopab2.1	. . 3 |- ( x = A -> ( ph <-> ps ) )
2		opelopab2.2	. . 3 |- ( y = B -> ( ps <-> ch ) )
3	1, 2	sylan9bb 462	. 2 |- ( ( x = A /\ y = B ) -> ( ph <-> ch ) )
4	3	opelopab2a 4267	1 |- ( ( A e. C /\ B e. D ) -> ( <. A , B >. e. { <. x , y >. | ( ( x e. C /\ y e. D ) /\ ph ) } <-> ch ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1353   e. wcel 2148   <.cop 3597   {copab 4065

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 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-14 2151  ax-ext 2159  ax-sep 4123  ax-pow 4176  ax-pr 4211

This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-v 2741  df-un 3135  df-in 3137  df-ss 3144  df-pw 3579  df-sn 3600  df-pr 3601  df-op 3603  df-opab 4067

This theorem is referenced by:  brecop  6627  netap  7255  2oneel  7257  2omotaplemap  7258  2omotaplemst  7259  divides  11798