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Metamath Proof Explorer

Theorem rexri

Description: A standard real is an extended real (inference form.) (Contributed by David Moews, 28-Feb-2017)

		Ref	Expression
	Hypothesis	rexri.1	$⊢ A \in ℝ$
	Assertion	rexri	$⊢ A \in ℝ^{*}$

Step	Hyp	Ref	Expression
1		rexri.1	$⊢ A \in ℝ$
2		rexr	$⊢ A \in ℝ \to A \in ℝ^{*}$
3	1 2	ax-mp	$⊢ A \in ℝ^{*}$