fromXconsXheadconsXXtake0XSniltakesNconsXconsXsel0consXX2ndconsXheadXSselsNconsXselNXS2.12ndconsX2ndconsXheadXShead2ndconsXheadAProVEunknownStatistics for single proof: 100,00 % (1 real / 0 unknown / 0 assumptions / 1 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe