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Metamath Proof Explorer

Theorem 5nn0

Description: 5 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015)

Ref Expression
Assertion 5nn0 5 ∈ ℕ0

Proof

Step Hyp Ref Expression
1 5nn ⊢ 5 ∈ ℕ
2 1 nnnn0i ⊢ 5 ∈ ℕ0