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 e. NN
2	1	nnne0i	|- 2 =/= 0