Theorem 6cn 7997

Description: The number 6 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.)

Assertion

Ref	Expression
6cn	⊢ 6 ∈ ℂ

Proof of Theorem 6cn

Step	Hyp	Ref	Expression
1		6re 7996	. 2 ⊢ 6 ∈ ℝ
2	1	recni 7039	1 ⊢ 6 ∈ ℂ

Syntax hints:   ∈ wcel 1393  ℂcc 6887  6c6 7968

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-5 1336  ax-7 1337  ax-gen 1338  ax-ie1 1382  ax-ie2 1383  ax-8 1395  ax-11 1397  ax-4 1400  ax-17 1419  ax-i9 1423  ax-ial 1427  ax-i5r 1428  ax-ext 2022  ax-resscn 6976  ax-1re 6978  ax-addrcl 6981

This theorem depends on definitions:  df-bi 110  df-nf 1350  df-sb 1646  df-clab 2027  df-cleq 2033  df-clel 2036  df-in 2924  df-ss 2931  df-2 7973  df-3 7974  df-4 7975  df-5 7976  df-6 7977

This theorem is referenced by:  6p2e8  8061  6p3e9  8062  6p4e10  8063  halfpm6th  8145  6t2e12  8444  6t3e18  8445