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Theorem opabssxp 4829
Description: An abstraction relation is a subset of a related cross product. (Contributed by NM, 16-Jul-1995.)
Assertion
Ref Expression
opabssxp  |-  { <. x ,  y >.  |  ( ( x  e.  A  /\  y  e.  B
)  /\  ph ) } 
C_  ( A  X.  B )
Distinct variable groups:    x, y, A   
x, B, y
Allowed substitution hints:    ph( x, y)

Proof of Theorem opabssxp
StepHypRef Expression
1 simpl 109 . . 3  |-  ( ( ( x  e.  A  /\  y  e.  B
)  /\  ph )  -> 
( x  e.  A  /\  y  e.  B
) )
21ssopab2i 4401 . 2  |-  { <. x ,  y >.  |  ( ( x  e.  A  /\  y  e.  B
)  /\  ph ) } 
C_  { <. x ,  y >.  |  ( x  e.  A  /\  y  e.  B ) }
3 df-xp 4760 . 2  |-  ( A  X.  B )  =  { <. x ,  y
>.  |  ( x  e.  A  /\  y  e.  B ) }
42, 3sseqtrri 3277 1  |-  { <. x ,  y >.  |  ( ( x  e.  A  /\  y  e.  B
)  /\  ph ) } 
C_  ( A  X.  B )
Colors of variables: wff set class
Syntax hints:    /\ wa 104    e. wcel 2205    C_ wss 3214   {copab 4175    X. cxp 4752
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2216
This theorem depends on definitions:  df-bi 117  df-nf 1510  df-sb 1812  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-in 3220  df-ss 3227  df-opab 4177  df-xp 4760
This theorem is referenced by:  brab2ga  4830  dmoprabss  6143  ecopovsym  6878  ecopovtrn  6879  ecopover  6880  ecopovsymg  6881  ecopovtrng  6882  ecopoverg  6883  opabfi  7213  netap  7584  2omotaplemap  7587  2omotaplemst  7588  enqex  7691  ltrelnq  7696  enq0ex  7770  ltrelpr  7836  enrex  8068  ltrelsr  8069  ltrelre  8164  ltrelxr  8350  dvdszrcl  12503  releqgg  13973  eqgex  13974  prdsex  14114  prdsval  14115  prdsbaslemss  14116  aprval  14529  aprap  14536  aprprop  14539  lmfval  15184  pellexlem3  15973  lgsquadlemofi  16075  lgsquadlem1  16076  lgsquadlem2  16077
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