active U11 tt N mark N active U21 tt M N mark s plus N M active and tt X mark X active isNat 0 mark tt active isNat plus V1 V2 mark and isNat V1 isNat V2 active isNat s V1 mark isNat V1 active plus N 0 mark U11 isNat N N active plus N s M mark U21 and isNat M isNat N M N active U11 X1 X2 U11 active X1 X2 active U21 X1 X2 X3 U21 active X1 X2 X3 active s X s active X active plus X1 X2 plus active X1 X2 active plus X1 X2 plus X1 active X2 active and X1 X2 and active X1 X2 U11 mark X1 X2 mark U11 X1 X2 U21 mark X1 X2 X3 mark U21 X1 X2 X3 s mark X mark s X plus mark X1 X2 mark plus X1 X2 plus X1 mark X2 mark plus X1 X2 and mark X1 X2 mark and X1 X2 proper U11 X1 X2 U11 proper X1 proper X2 proper tt ok tt proper U21 X1 X2 X3 U21 proper X1 proper X2 proper X3 proper s X s proper X proper plus X1 X2 plus proper X1 proper X2 proper and X1 X2 and proper X1 proper X2 proper isNat X isNat proper X proper 0 ok 0 U11 ok X1 ok X2 ok U11 X1 X2 U21 ok X1 ok X2 ok X3 ok U21 X1 X2 X3 s ok X ok s X plus ok X1 ok X2 ok plus X1 X2 and ok X1 ok X2 ok and X1 X2 isNat ok X ok isNat X top mark X top proper X top ok X top active X active 1 U11 2 tt 0 mark 1 U21 3 s 1 plus 2 and 2 isNat 1 0 0 proper 1 ok 1 top 1 INNERMOST ./TRS/TRCSR/inn/PEANO_nokinds_C.trs