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Theorem 3ex 8954
Description: 3 is a set (common case). (Contributed by David A. Wheeler, 8-Dec-2018.)
Assertion
Ref Expression
3ex  |-  3  e.  _V

Proof of Theorem 3ex
StepHypRef Expression
1 3cn 8953 . 2  |-  3  e.  CC
21elexi 2742 1  |-  3  e.  _V
Colors of variables: wff set class
Syntax hints:    e. wcel 2141   _Vcvv 2730   CCcc 7772   3c3 8930
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-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-11 1499  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-ext 2152  ax-resscn 7866  ax-1re 7868  ax-addrcl 7871
This theorem depends on definitions:  df-bi 116  df-nf 1454  df-sb 1756  df-clab 2157  df-cleq 2163  df-clel 2166  df-v 2732  df-in 3127  df-ss 3134  df-2 8937  df-3 8938
This theorem is referenced by:  fztpval  10039  lgsdir2lem3  13725
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