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Theorem prm 3745
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 3743 . 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 1506    e. wcel 2167   _Vcvv 2763   {cpr 3623
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 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-ext 2178
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1475  df-sb 1777  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-v 2765  df-un 3161  df-sn 3628  df-pr 3629
This theorem is referenced by: (None)
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