| [ QuizWit ] in KIDS 글 쓴 이(By): onnury (꿈꾸는처용�x) 날 짜 (Date): 1995년09월18일(월) 03시02분24초 KDT 제 목(Title): re]proof First of all, you have to define 0,1 and equality(or inequlity) sign to prove your question.... All you want to prove can be seen in any textbook of basic set theory. Just see for yourself and do it by yourself.... ***************사랑 가득한 평등의 세상으로*************** |