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高1數學集合
Nov 6th 2013, 14:37

請問{0,1} {0,1,{0,1}}是一樣的東西嗎?
ANS:不一樣的集合，{0,1}只有0,1兩個元素，{0,1,{0,1}}有0,1,{0,1}三個元素。

{0,1} {﹝0,1﹞}是一樣的東西嗎?
ANS:不一樣的集合，{0,1}有0,1兩個元素，{﹝0,1﹞}只有﹝0,1﹞一個元素。
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