proposition: Lemma eqTrans (T : System) (a b c : Term): SysPrf T (a = b)%nt -> SysPrf T (b = c)%nt -> SysPrf T (a = c)%nt.
proof: Proof. apply (eqTrans LNT). Qed.
imports: Coq(Arith Ensembles List) hydras.Ackermann(Languages folProof folProp folLogic3)