Axiom ax-1cn

Description: 1 is a complex number. Axiom 2 of 22 for real and complex numbers, justified by Theorem ax1cn . (Contributed by NM, 1-Mar-1995)

	Ref	Expression
Assertion	ax-1cn	⊢ 1 ∈ ℂ

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		c1	⊢ 1
1		cc	⊢ ℂ
2	0 1	wcel	⊢ 1 ∈ ℂ