fact: Definition Decr (rho : rule') := exists f, exists a : L f, exists b, a >L b /\ rho = decr a b.
imports: CoLoR(ATrs AInterpretation BoolUtil LogicUtil EqUtil VecUtil SN RelUtil AWFMInterpretation NaryFunction NatUtil ARelation ARules SetUtil FunUtil VecMax AMorphism) Coq(List)