Theorem zcn

Description: An integer is a complex number. (Contributed by NM, 9-May-2004)

	Ref	Expression
Assertion	zcn	$$⊢N\in \mathbb{Z}\to N\in ℂ$$

Proof

Step	Hyp	Ref	Expression
1		zre	$$⊢N\in \mathbb{Z}\to N\in ℝ$$
2	1	recnd	$$⊢N\in \mathbb{Z}\to N\in ℂ$$