Theorem ene0

Description: _e is not 0. (Contributed by David A. Wheeler, 17-Oct-2017)

	Ref	Expression
Assertion	ene0	⊢ e ≠ 0

Proof

Step	Hyp	Ref	Expression
1		ere	⊢ e ∈ ℝ
2		epos	⊢ 0 < e
3	1 2	gt0ne0ii	⊢ e ≠ 0