Theorem 2mulicn

Description: ( 2 x. _i ) e. CC . (Contributed by David A. Wheeler, 8-Dec-2018)

	Ref	Expression
Assertion	2mulicn	⊢ ( 2 · i ) ∈ ℂ

Proof

Step	Hyp	Ref	Expression
1		2cn	⊢ 2 ∈ ℂ
2		ax-icn	⊢ i ∈ ℂ
3	1 2	mulcli	⊢ ( 2 · i ) ∈ ℂ