zeros cons 0 zeros U11 tt L s length L and tt X X isNat 0 tt isNat length V1 isNatList V1 isNat s V1 isNat V1 isNatIList V isNatList V isNatIList zeros tt isNatIList cons V1 V2 and isNat V1 isNatIList V2 isNatList nil tt isNatList cons V1 V2 and isNat V1 isNatList V2 length nil 0 length cons N L U11 and isNatList L isNat N L zeros 0 cons 2 1 0 0 U11 2 1 tt 0 s 1 1 length 1 1 and 2 1 isNat 1 isNatList 1 isNatIList 1 nil 0 FULL ./TRS/CSR_Maude/length-lazy-list/LengthOfFiniteLists_nokinds.trs