Theorem nn0ge0i

Description: Nonnegative integers are nonnegative. (Contributed by Raph Levien, 10-Dec-2002)

	Ref	Expression
Hypothesis	nn0ge0i.1	⊢ 𝑁 ∈ ℕ0
Assertion	nn0ge0i	⊢ 0 ≤ 𝑁

Proof

Step	Hyp	Ref	Expression
1		nn0ge0i.1	⊢ 𝑁 ∈ ℕ0
2		nn0ge0	⊢ ( 𝑁 ∈ ℕ0 → 0 ≤ 𝑁 )
3	1 2	ax-mp	⊢ 0 ≤ 𝑁