Theorem halfgt0

Description: One-half is greater than zero. (Contributed by NM, 24-Feb-2005)

	Ref	Expression
Assertion	halfgt0	⊢ 0 < ( 1 / 2 )

Proof

Step	Hyp	Ref	Expression
1		2re	⊢ 2 ∈ ℝ
2		2pos	⊢ 0 < 2
3	1 2	recgt0ii	⊢ 0 < ( 1 / 2 )