Theorem 5ne0

Description: The number 5 is nonzero. (Contributed by SN, 22-Oct-2025)

	Ref	Expression
Assertion	5ne0	|- 5 =/= 0

Proof

Step	Hyp	Ref	Expression
1		5nn	|- 5 e. NN
2	1	nnne0i	|- 5 =/= 0