Theorem zred

Description: An integer is a real number. (Contributed by Mario Carneiro, 28-May-2016)

	Ref	Expression
Hypothesis	zred.1	$$⊢\phi \to A\in \mathbb{Z}$$
Assertion	zred	$$⊢\phi \to A\in ℝ$$

Proof

Step	Hyp	Ref	Expression
1		zred.1	$$⊢\phi \to A\in \mathbb{Z}$$
2		zssre	$$⊢\mathbb{Z}\subseteq ℝ$$
3	2 1	sselid	$$⊢\phi \to A\in ℝ$$