proposition: Theorem Variant_LT_free_0 : @Hvariant _ _ T1_wf free Hydra_Termination.m.
proof: Proof. split; intros; now apply round_decr. Qed.
imports: hydras(Hydra_Lemmas Epsilon0_Needed_Free Epsilon0_Needed_Std Hydra_Termination L_alpha Battle_length Ack)