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Metamath Proof Explorer

Theorem nnre

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

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

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