proposition: Corollary not_all_ex_not_realizer3 : forall T S R (F : T -> S -> R -> formula), forall e, not_all_ex_not↓e ⊩ ¬(∀x y z, F x y z) → ∃x y z, ¬F x y z.
proof: Proof. do 3 Ksolve. eok. Qed.
imports: ClassicalRealizability.Tactics ClassicalRealizability.BasicResults ClassicalRealizability.Subtyping