2012-09-08 功利主義と多数決 case 1 Aさん: 80 happiness Bさん: 80 happiness Cさん: 80 happiness case 2 Aさん: 100 happiness Bさん: 100 happiness Cさん: 0 happiness elected 功利主義: case1 (単純な)多数決: case2