Require Import Naturelle.
Section Session1_2020_Logique_Exercice_2.

Variable A B : Prop.

Theorem Exercice_2_Naturelle : (A -> B) -> ((~A) \/ B).
Proof.
(* A COMPLETER *)
Qed.

Theorem Exercice_2_Coq : (A -> B) -> ((~A) \/ B).
Proof.
(* A COMPLETER *)
Qed.

End Session1_2020_Logique_Exercice_2.