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Theorem sqxpexg 4843
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 4840 . 2  |-  ( ( A  e.  V  /\  A  e.  V )  ->  ( A  X.  A
)  e.  _V )
21anidms 397 1  |-  ( A  e.  V  ->  ( A  X.  A )  e. 
_V )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2202   _Vcvv 2802    X. cxp 4723
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-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530
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-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-uni 3894  df-opab 4151  df-xp 4731
This theorem is referenced by:  ispsmet  15046  ismet  15067  isxmet  15068  xmetunirn  15081
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