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Theorem prm 3699
Description: A pair containing a set is inhabited. (Contributed by Jim Kingdon, 21-Sep-2018.)
Hypothesis
Ref Expression
prnz.1  |-  A  e. 
_V
Assertion
Ref Expression
prm  |-  E. x  x  e.  { A ,  B }
Distinct variable groups:    x, A    x, B

Proof of Theorem prm
StepHypRef Expression
1 prnz.1 . 2  |-  A  e. 
_V
2 prmg 3697 . 2  |-  ( A  e.  _V  ->  E. x  x  e.  { A ,  B } )
31, 2ax-mp 5 1  |-  E. x  x  e.  { A ,  B }
Colors of variables: wff set class
Syntax hints:   E.wex 1480    e. wcel 2136   _Vcvv 2726   {cpr 3577
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-ext 2147
This theorem depends on definitions:  df-bi 116  df-tru 1346  df-nf 1449  df-sb 1751  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-v 2728  df-un 3120  df-sn 3582  df-pr 3583
This theorem is referenced by: (None)
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