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Metamath Proof Explorer

Theorem zxrd

Description: An integer is an extended real number. (Contributed by Glauco Siliprandi, 2-Jan-2022)

		Ref	Expression
	Hypothesis	zxrd.1	$⊢ φ \to A \in ℤ$
	Assertion	zxrd	$⊢ φ \to A \in ℝ^{*}$

Step	Hyp	Ref	Expression
1		zxrd.1	$⊢ φ \to A \in ℤ$
2	1	zred	$⊢ φ \to A \in ℝ$
3	2	rexrd	$⊢ φ \to A \in ℝ^{*}$