appappmapfnilnilappappmapfappappconsxxsappappconsappfxappappmapfxsappappappendxsnilxsappappappendnilysysappappappendappappconsxxsysappappconsxappappappendxsysappappzipnilyssyssappappzipxssnilxssappappzipappappconsxsxssappappconsysyssappappconsappappappendxsysappappzipxssyssappappcombinexsnilxsappappcombinexsappappconsysyssappappcombineappappzipxsysyssapplevelsappappnodexxsappappconsappappconsxnilappappcombinenilappappmaplevelsxs2.1appmap0mapmap1map2nil0nilcons0conscons1cons2append0appendappend1append2zip0zipzip1zip2combine0combinecombine1combine2levels0levelslevels1node0nodenode1node2appmapy1map1y1appmap1x0y1map2x0y1appconsy1cons1y1appcons1x0y1cons2x0y1appappendy1append1y1appappend1x0y1append2x0y1appzipy1zip1y1appzip1x0y1zip2x0y1appcombiney1combine1y1appcombine1x0y1combine2x0y1applevelsy1levels1y1appnodey1node1y1appnode1x0y1node2x0y1map2fnilnilmap2fcons2xxscons2appfxmap2fxsappend2xsnilxsappend2nilysysappend2cons2xxsyscons2xappend2xsyszip2nilyssysszip2xssnilxsszip2cons2xsxsscons2ysysscons2append2xsyszip2xssysscombine2xsnilxscombine2xscons2ysysscombine2zip2xsysysslevels1node2xxscons2cons2xnilcombine2nilmap2levelsxsappmapy1map1y1appmap1x0y1map2x0y1appconsy1cons1y1appcons1x0y1cons2x0y1appappendy1append1y1appappend1x0y1append2x0y1appzipy1zip1y1appzip1x0y1zip2x0y1appcombiney1combine1y1appcombine1x0y1combine2x0y1applevelsy1levels1y1appnodey1node1y1appnode1x0y1node2x0y1map2210nil01cons220app210append222zip223combine224levels1110node2210levels05map011map1110cons012cons116append013append117zip014zip118combine015node016node119map2212nil0cons2212app212append2212zip2212combine2221levels111node2212levels0map0map111cons0cons111append0append111zip0zip111combine0combine111node0node111AProVEAProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Statistics for single proof: 100.00 % (3 real / 0 unknown / 0 assumptions / 3 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe