proposition: Corollary not_ex_all_not_realizer4 : forall T S R Q (F : T -> S -> R -> Q -> formula), forall e, not_ex_all_not↓e ⊩ ¬(∃x y z t, F x y z t) → ∀x y z t, ¬F x y z t.
proof: Proof. repeat Ksolve. Qed.
imports: ClassicalRealizability.Tactics ClassicalRealizability.BasicResults ClassicalRealizability.Subtyping