Theorem pirp

Description: _pi is a positive real. (Contributed by Glauco Siliprandi, 11-Dec-2019)

	Ref	Expression
Assertion	pirp	⊢ π ∈ ℝ+

Proof

Step	Hyp	Ref	Expression
1		pire	⊢ π ∈ ℝ
2		pipos	⊢ 0 < π
3	1 2	elrpii	⊢ π ∈ ℝ+