Theorem 8nn0

Description: 8 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015)

	Ref	Expression
Assertion	8nn0	⊢ 8 ∈ ℕ0

Proof

Step	Hyp	Ref	Expression
1		8nn	⊢ 8 ∈ ℕ
2	1	nnnn0i	⊢ 8 ∈ ℕ0