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Theorem resopab 5057
Description: Restriction of a class abstraction of ordered pairs. (Contributed by NM, 5-Nov-2002.)
Assertion
Ref Expression
resopab  |-  ( {
<. x ,  y >.  |  ph }  |`  A )  =  { <. x ,  y >.  |  ( x  e.  A  /\  ph ) }
Distinct variable group:    x, y, A
Allowed substitution hints:    ph( x, y)

Proof of Theorem resopab
StepHypRef Expression
1 df-res 4737 . 2  |-  ( {
<. x ,  y >.  |  ph }  |`  A )  =  ( { <. x ,  y >.  |  ph }  i^i  ( A  X.  _V ) )
2 df-xp 4731 . . . . . 6  |-  ( A  X.  _V )  =  { <. x ,  y
>.  |  ( x  e.  A  /\  y  e.  _V ) }
3 vex 2805 . . . . . . . 8  |-  y  e. 
_V
43biantru 302 . . . . . . 7  |-  ( x  e.  A  <->  ( x  e.  A  /\  y  e.  _V ) )
54opabbii 4156 . . . . . 6  |-  { <. x ,  y >.  |  x  e.  A }  =  { <. x ,  y
>.  |  ( x  e.  A  /\  y  e.  _V ) }
62, 5eqtr4i 2255 . . . . 5  |-  ( A  X.  _V )  =  { <. x ,  y
>.  |  x  e.  A }
76ineq2i 3405 . . . 4  |-  ( {
<. x ,  y >.  |  ph }  i^i  ( A  X.  _V ) )  =  ( { <. x ,  y >.  |  ph }  i^i  { <. x ,  y >.  |  x  e.  A } )
8 incom 3399 . . . 4  |-  ( {
<. x ,  y >.  |  ph }  i^i  { <. x ,  y >.  |  x  e.  A } )  =  ( { <. x ,  y
>.  |  x  e.  A }  i^i  { <. x ,  y >.  |  ph } )
97, 8eqtri 2252 . . 3  |-  ( {
<. x ,  y >.  |  ph }  i^i  ( A  X.  _V ) )  =  ( { <. x ,  y >.  |  x  e.  A }  i^i  {
<. x ,  y >.  |  ph } )
10 inopab 4862 . . 3  |-  ( {
<. x ,  y >.  |  x  e.  A }  i^i  { <. x ,  y >.  |  ph } )  =  { <. x ,  y >.  |  ( x  e.  A  /\  ph ) }
119, 10eqtri 2252 . 2  |-  ( {
<. x ,  y >.  |  ph }  i^i  ( A  X.  _V ) )  =  { <. x ,  y >.  |  ( x  e.  A  /\  ph ) }
121, 11eqtri 2252 1  |-  ( {
<. x ,  y >.  |  ph }  |`  A )  =  { <. x ,  y >.  |  ( x  e.  A  /\  ph ) }
Colors of variables: wff set class
Syntax hints:    /\ wa 104    = wceq 1397    e. wcel 2202   _Vcvv 2802    i^i cin 3199   {copab 4149    X. cxp 4723    |` cres 4727
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-v 2804  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-opab 4151  df-xp 4731  df-rel 4732  df-res 4737
This theorem is referenced by:  resopab2  5060  opabresid  5066  mptpreima  5230  isarep2  5417  resoprab  6116  df1st2  6383  df2nd2  6384
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