File: boolean.v

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mathcomp-zify 1.5.0%2B2.0%2B8.16-4
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From mathcomp Require Import all_ssreflect zify.

Set Implicit Arguments.
Unset Strict Implicit.
Unset Printing Implicit Defensive.

Lemma odd_add (n m : nat) : odd (m + n) = odd m (+) odd n.
Proof. lia. Qed.