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Metamath Proof Explorer

Theorem nnrei

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

		Ref	Expression
	Hypothesis	nnre.1	$⊢ A \in ℕ$
	Assertion	nnrei	$⊢ A \in ℝ$

Step	Hyp	Ref	Expression
1		nnre.1	$⊢ A \in ℕ$
2		nnre	$⊢ A \in ℕ \to A \in ℝ$
3	1 2	ax-mp	$⊢ A \in ℝ$