Theorem zeo3 14899

Description: An integer is even or odd. With this representation of even and odd integers, this variant of zeo 11339 follows immediatly from the law of excluded middle, see exmidd 431. (Contributed by AV, 17-Jun-2021.)

Assertion

Ref	Expression
zeo3	⊢ (𝑁 ∈ ℤ → (2 ∥ 𝑁 ∨ ¬ 2 ∥ 𝑁))

Proof of Theorem zeo3

Step	Hyp	Ref	Expression
1		exmidd 431	1 ⊢ (𝑁 ∈ ℤ → (2 ∥ 𝑁 ∨ ¬ 2 ∥ 𝑁))

Syntax hints:  ¬ wn 3   → wi 4   ∨ wo 382   ∈ wcel 1977   class class class wbr 4583  2c2 10947  ℤcz 11254   ∥ cdvds 14821

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 196  df-or 384

This theorem is referenced by:  zeo5  14918