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Theorem sqxpexg 4720
Description: The Cartesian square of a set is a set. (Contributed by AV, 13-Jan-2020.)
Assertion
Ref Expression
sqxpexg  |-  ( A  e.  V  ->  ( A  X.  A )  e. 
_V )

Proof of Theorem sqxpexg
StepHypRef Expression
1 xpexg 4718 . 2  |-  ( ( A  e.  V  /\  A  e.  V )  ->  ( A  X.  A
)  e.  _V )
21anidms 395 1  |-  ( A  e.  V  ->  ( A  X.  A )  e. 
_V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2136   _Vcvv 2726    X. cxp 4602
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 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-13 2138  ax-14 2139  ax-ext 2147  ax-sep 4100  ax-pow 4153  ax-pr 4187  ax-un 4411
This theorem depends on definitions:  df-bi 116  df-3an 970  df-tru 1346  df-nf 1449  df-sb 1751  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-rex 2450  df-v 2728  df-un 3120  df-in 3122  df-ss 3129  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-uni 3790  df-opab 4044  df-xp 4610
This theorem is referenced by:  ispsmet  12963  ismet  12984  isxmet  12985  xmetunirn  12998
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