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Theorem dmxpin 4729
 Description: The domain of the intersection of two square Cartesian products. Unlike dmin 4715, equality holds. (Contributed by NM, 29-Jan-2008.)
Assertion
Ref Expression
dmxpin

Proof of Theorem dmxpin
StepHypRef Expression
1 inxp 4641 . . 3
21dmeqi 4708 . 2
3 dmxpid 4728 . 2
42, 3eqtri 2136 1
 Colors of variables: wff set class Syntax hints:   wceq 1314   cin 3038   cxp 4505   cdm 4507 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 681  ax-5 1406  ax-7 1407  ax-gen 1408  ax-ie1 1452  ax-ie2 1453  ax-8 1465  ax-10 1466  ax-11 1467  ax-i12 1468  ax-bndl 1469  ax-4 1470  ax-14 1475  ax-17 1489  ax-i9 1493  ax-ial 1497  ax-i5r 1498  ax-ext 2097  ax-sep 4014  ax-pow 4066  ax-pr 4099 This theorem depends on definitions:  df-bi 116  df-3an 947  df-tru 1317  df-nf 1420  df-sb 1719  df-eu 1978  df-mo 1979  df-clab 2102  df-cleq 2108  df-clel 2111  df-nfc 2245  df-ral 2396  df-rex 2397  df-v 2660  df-un 3043  df-in 3045  df-ss 3052  df-pw 3480  df-sn 3501  df-pr 3502  df-op 3504  df-br 3898  df-opab 3958  df-xp 4513  df-rel 4514  df-dm 4517 This theorem is referenced by: (None)
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