Theorem 0ne1

Description: Zero is different from one (the commuted form is Axiom ax-1ne0 ). (Contributed by David A. Wheeler, 8-Dec-2018)

	Ref	Expression
Assertion	0ne1	$$⊢0\ne 1$$

Proof

Step	Hyp	Ref	Expression
1		ax-1ne0	$$⊢1\ne 0$$
2	1	necomi	$$⊢0\ne 1$$