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Metamath Proof Explorer

Theorem zssre

Description: The integers are a subset of the reals. (Contributed by NM, 2-Aug-2004)

		Ref	Expression
	Assertion	zssre	$⊢ ℤ \subseteq ℝ$

Step	Hyp	Ref	Expression
1		zre	$⊢ x \in ℤ \to x \in ℝ$
2	1	ssriv	$⊢ ℤ \subseteq ℝ$