proposition: Theorem Variant_lt_standard : @Hvariant _ _ E0lt_wf standard Hydra_Termination.var.
proof: Proof. split; intros i h h' H H0; apply round_decr; now exists i. Qed.
imports: hydras(Hydra_Lemmas Epsilon0_Needed_Free Epsilon0_Needed_Std Hydra_Termination L_alpha Battle_length Ack)