Theorem 2ne0

Description: The number 2 is nonzero. (Contributed by NM, 9-Nov-2007)

	Ref	Expression
Assertion	2ne0	⊢ 2 ≠ 0

Proof

Step	Hyp	Ref	Expression
1		2nn	⊢ 2 ∈ ℕ
2	1	nnne0i	⊢ 2 ≠ 0