Theorem 1rp

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

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

Proof

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