Theorem nnre

Description: A positive integer is a real number. (Contributed by NM, 18-Aug-1999)

	Ref	Expression
Assertion	nnre	$$⊢A\in \mathbb{N}\to A\in ℝ$$

Proof

Step	Hyp	Ref	Expression
1		nnssre	$$⊢\mathbb{N}\subseteq ℝ$$
2	1	sseli	$$⊢A\in \mathbb{N}\to A\in ℝ$$