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Theorem 1ex 8321
Description: 1 is a set. Common special case. (Contributed by David A. Wheeler, 7-Jul-2016.)
Assertion
Ref Expression
1ex 1 ∈ V

Proof of Theorem 1ex
StepHypRef Expression
1 ax-1cn 8272 . 2 1 ∈ ℂ
21elexi 2834 1 1 ∈ V
Colors of variables:    wff set class
This proof depends on syntax axioms:  wcel 2209  Vcvv 2821  cc 8177  1c1 8180
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1500  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-ext 2220  ax-1cn 8272
This proof depends on definitions:  df-bi 117  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-v 2823
This theorem is used by:  nn1suc  9325  nn0ind-raph  9767  fzprval  10499  fztpval  10500  m1expcl2  11011  1exp  11018  facnn  11179  fac0  11180  prhash2ex  11264  prodf1f  12326  fprodntrivap  12367  prod1dc  12369  fprodssdc  12373  ege2le3  12454  1nprm  12908  pcmpt  13142  ballotfilem2  13277  dvexp  15861  dvef  15877  ppiublem2  16193  bposlem5  16213  lgsdir2lem3  16247  2wlklem  16715  konigsberglem4  16830  konigsberglem5  16831  2o01f  17122  iswomni0  17199
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