proposition: Lemma Decr_empty : Decr beq_ok Lgt [=] empty.
proof: Proof. fo. Qed.
imports: CoLoR(ATrs AInterpretation BoolUtil LogicUtil EqUtil VecUtil SN RelUtil AWFMInterpretation NaryFunction NatUtil ARelation ARules SetUtil FunUtil VecMax AMorphism) Coq(List)