Theorem z2even

Description: 2 divides 2. That means 2 is even. (Contributed by AV, 12-Feb-2020) (Revised by AV, 23-Jun-2021)

	Ref	Expression
Assertion	z2even	⊢ 2 ∥ 2

Proof

Step	Hyp	Ref	Expression
1		2z	⊢ 2 ∈ ℤ
2		iddvds	⊢ ( 2 ∈ ℤ → 2 ∥ 2 )
3	1 2	ax-mp	⊢ 2 ∥ 2