Theorem zsscn

Description: The integers are a subset of the complex numbers. (Contributed by NM, 2-Aug-2004)

	Ref	Expression
Assertion	zsscn	$$⊢\mathbb{Z}\subseteq ℂ$$

Proof

Step	Hyp	Ref	Expression
1		zcn	$$⊢x\in \mathbb{Z}\to x\in ℂ$$
2	1	ssriv	$$⊢\mathbb{Z}\subseteq ℂ$$