YES a__U11ttV1V2a__U12a__isNatV1V2a__U12ttV2a__U13a__isNatV2a__U13tttta__U21ttV1a__U22a__isNatV1a__U22tttta__U31ttV1V2a__U32a__isNatV1V2a__U32ttV2a__U33a__isNatV2a__U33tttta__U41ttNmarkNa__U51ttMNsa__plusmarkNmarkMa__U61tt0a__U71ttMNa__plusa__xmarkNmarkMmarkNa__andttXmarkXa__isNat0tta__isNatplusV1V2a__U11a__anda__isNatKindV1isNatKindV2V1V2a__isNatsV1a__U21a__isNatKindV1V1a__isNatxV1V2a__U31a__anda__isNatKindV1isNatKindV2V1V2a__isNatKind0tta__isNatKindplusV1V2a__anda__isNatKindV1isNatKindV2a__isNatKindsV1a__isNatKindV1a__isNatKindxV1V2a__anda__isNatKindV1isNatKindV2a__plusN0a__U41a__anda__isNatNisNatKindNNa__plusNsMa__U51a__anda__anda__isNatMisNatKindMandisNatNisNatKindNMNa__xN0a__U61a__anda__isNatNisNatKindNa__xNsMa__U71a__anda__anda__isNatMisNatKindMandisNatNisNatKindNMNmarkU11X1X2X3a__U11markX1X2X3markU12X1X2a__U12markX1X2markisNatXa__isNatXmarkU13Xa__U13markXmarkU21X1X2a__U21markX1X2markU22Xa__U22markXmarkU31X1X2X3a__U31markX1X2X3markU32X1X2a__U32markX1X2markU33Xa__U33markXmarkU41X1X2a__U41markX1X2markU51X1X2X3a__U51markX1X2X3markplusX1X2a__plusmarkX1markX2markU61Xa__U61markXmarkU71X1X2X3a__U71markX1X2X3markxX1X2a__xmarkX1markX2markandX1X2a__andmarkX1X2markisNatKindXa__isNatKindXmarkttttmarksXsmarkXmark00a__U11X1X2X3U11X1X2X3a__U12X1X2U12X1X2a__isNatXisNatXa__U13XU13Xa__U21X1X2U21X1X2a__U22XU22Xa__U31X1X2X3U31X1X2X3a__U32X1X2U32X1X2a__U33XU33Xa__U41X1X2U41X1X2a__U51X1X2X3U51X1X2X3a__plusX1X2plusX1X2a__U61XU61Xa__U71X1X2X3U71X1X2X3a__xX1X2xX1X2a__andX1X2andX1X2a__isNatKindXisNatKindX2.1a__U1130tt04a__U1220a__U2125a__U2211a__U3136a__U3222a__U4123a__U5138s17a__plus28004a__U7139a__x29a__and27plus28x29and27U1130U1220U2125U2211U3136U3222U4123U5138U7139a__U113123tt0a__U12212a__isNat11a__U1311a__U21212a__U2211a__U313123a__U32212a__U3311a__U41212mark11a__U513321s11a__plus212a__U611100a__U713231a__x221a__and212plus212a__isNatKind11isNatKind11x221and212isNat11U113123U12212U1311U21212U2211U313123U32212U3311U41212U513321U6111U713231a__U13tttta__U33tttta__U61tt0a__isNat0tta__isNatKind0ttmarkU11X1X2X3a__U11markX1X2X3markU12X1X2a__U12markX1X2markisNatXa__isNatXmarkU13Xa__U13markXmarkU21X1X2a__U21markX1X2markU22Xa__U22markXmarkU31X1X2X3a__U31markX1X2X3markU32X1X2a__U32markX1X2markU33Xa__U33markXmarkU41X1X2a__U41markX1X2markU51X1X2X3a__U51markX1X2X3markplusX1X2a__plusmarkX1markX2markU61Xa__U61markXmarkU71X1X2X3a__U71markX1X2X3markxX1X2a__xmarkX1markX2markandX1X2a__andmarkX1X2markisNatKindXa__isNatKindXmarkttttmarksXsmarkXmark00a__U11X1X2X3U11X1X2X3a__U12X1X2U12X1X2a__isNatXisNatXa__U13XU13Xa__U21X1X2U21X1X2a__U22XU22Xa__U31X1X2X3U31X1X2X3a__U32X1X2U32X1X2a__U33XU33Xa__U41X1X2U41X1X2a__U51X1X2X3U51X1X2X3a__plusX1X2plusX1X2a__U61XU61Xa__U71X1X2X3U71X1X2X3a__xX1X2xX1X2a__andX1X2andX1X2a__isNatKindXisNatKindX1tt013200321a__U131121a__U331351a__U611331a__isNat1211a__isNatKind1141mark1370isNat1181U131111U22111a__U221271U331281U611301isNatKind1101s1341U11300a__U113360U122190a__U122240U212250a__U212260U31320a__U31330U322150a__U322160U41240a__U41250U51360a__U513290plus2170a__plus2200U71370a__U71380x2220a__x2230and290a__and2310AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (3 real / 0 unknown / 0 assumptions / 3 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe