Theorem nnre

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

	Ref	Expression
Assertion	nnre	⊢ ( 𝐴 ∈ ℕ → 𝐴 ∈ ℝ )

Proof

Step	Hyp	Ref	Expression
1		nnssre	⊢ ℕ ⊆ ℝ
2	1	sseli	⊢ ( 𝐴 ∈ ℕ → 𝐴 ∈ ℝ )