YES a______XYZa____markXa____markYmarkZa____XnilmarkXa____nilXmarkXa__andttXmarkXa__isListVa__isNeListVa__isListniltta__isList__V1V2a__anda__isListV1isListV2a__isNeListVa__isQidVa__isNeList__V1V2a__anda__isListV1isNeListV2a__isNeList__V1V2a__anda__isNeListV1isListV2a__isNePalVa__isQidVa__isNePal__I__PIa__anda__isQidIisPalPa__isPalVa__isNePalVa__isPalniltta__isQidatta__isQidetta__isQiditta__isQidotta__isQiduttmark__X1X2a____markX1markX2markandX1X2a__andmarkX1X2markisListXa__isListXmarkisNeListXa__isNeListXmarkisQidXa__isQidXmarkisNePalXa__isNePalXmarkisPalXa__isPalXmarknilnilmarkttttmarkaamarkeemarkiimarkoomarkuua____X1X2__X1X2a__andX1X2andX1X2a__isListXisListXa__isNeListXisNeListXa__isQidXisQidXa__isNePalXisNePalXa__isPalXisPalX2.11nil0191tt003a0202e072i0142o0152u0162mark1210a__isList143a__isNeList1132isList133a__isQid191isNeList1122a__isNePal1112isPal119a__isPal159isQid181isNePal1102__224a____264a__and2180and2170AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (2 real / 0 unknown / 0 assumptions / 2 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe