YES plusx0xplussxysplusxytimesx00timessxyplustimesxyytimesxplusyzplustimesxytimesxzplustimesplustimes2.12plus221211times222221112001s1211plusx0xtimesx00timessxyplustimesxyy2plus221211times223231312s111timesxplusyzplustimesxytimesxz2plus212221212times233231212s1211plussxysplusxyAProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (4 real / 0 unknown / 0 assumptions / 4 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe