Theorem 7ne0

Description: The number 7 is nonzero. (Contributed by SN, 22-Oct-2025)

	Ref	Expression
Assertion	7ne0	⊢ 7 ≠ 0

Proof

Step	Hyp	Ref	Expression
1		7nn	⊢ 7 ∈ ℕ
2	1	nnne0i	⊢ 7 ≠ 0