Theorem 1ex 7679

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

Step	Hyp	Ref	Expression
1		ax-1cn 7632	. 2 ⊢ 1 ∈ ℂ
2	1	elexi 2667	1 ⊢ 1 ∈ V

Syntax hints:   ∈ wcel 1461  Vcvv 2655  ℂcc 7539  1c1 7542

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1404  ax-gen 1406  ax-ie1 1450  ax-ie2 1451  ax-8 1463  ax-4 1468  ax-17 1487  ax-i9 1491  ax-ial 1495  ax-ext 2095  ax-1cn 7632

This theorem depends on definitions:  df-bi 116  df-sb 1717  df-clab 2100  df-cleq 2106  df-clel 2109  df-v 2657

This theorem is referenced by:  nn1suc  8643  nn0ind-raph  9066  fzprval  9749  fztpval  9750  m1expcl2  10202  1exp  10209  facnn  10360  fac0  10361  prhash2ex  10442  ege2le3  11222  1nprm  11635  isomninnlem  12906