fact: Definition PA2_form := ax_eq_refl ∧ ax_eq_symm ∧ ax_zero_succ ∧ ax_succ_inj ∧ ax_add_zero ∧ ax_add_rec ∧ ax_mul_zero ∧ ax_mul_rec ∧ ax_ind.
imports: PeanoNat Lia Vector Undecidability.SOL(SOL PA2) Undecidability.Shared.Libs.PSL(Vectors) Undecidability.SOL.Util(Syntax Subst Tarski) Undecidability.Synthetic(Definitions DecidabilityFacts EnumerabilityFacts ListEnumerabilityFacts ReducibilityFacts) Undecidability.Shared.Dec