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Metamath Proof Explorer

Theorem 1rp

Description: 1 is a positive real. (Contributed by Jeff Hankins, 23-Nov-2008)

		Ref	Expression
	Assertion	1rp	$⊢ 1 \in ℝ^{+}$

Step	Hyp	Ref	Expression
1		1re	$⊢ 1 \in ℝ$
2		0lt1	$⊢ 0 < 1$
3	1 2	elrpii	$⊢ 1 \in ℝ^{+}$