a__U11 tt N mark N a__U21 tt M N s a__plus mark N mark M a__and tt X mark X a__isNat 0 tt a__isNat plus V1 V2 a__and a__isNat V1 isNat V2 a__isNat s V1 a__isNat V1 a__plus N 0 a__U11 a__isNat N N a__plus N s M a__U21 a__and a__isNat M isNat N M N mark U11 X1 X2 a__U11 mark X1 X2 mark U21 X1 X2 X3 a__U21 mark X1 X2 X3 mark plus X1 X2 a__plus mark X1 mark X2 mark and X1 X2 a__and mark X1 X2 mark isNat X a__isNat X mark tt tt mark s X s mark X mark 0 0 a__U11 X1 X2 U11 X1 X2 a__U21 X1 X2 X3 U21 X1 X2 X3 a__plus X1 X2 plus X1 X2 a__and X1 X2 and X1 X2 a__isNat X isNat X a__U11 2 tt 0 mark 1 a__U21 3 s 1 a__plus 2 a__and 2 a__isNat 1 0 0 plus 2 isNat 1 U11 2 U21 3 and 2 INNERMOST ./TRS/TRCSR/inn/PEANO_nokinds_GM.trs