10/12/2015

[轉載] How to Study Math? -Paul R. Halmos



Don't just read it; fight it! Ask your own questions, look for your own examples, discover your own proofs. Is the hypothesis necessary? Is the converse true? What happens in the classical special case? What about the degenerate cases? Where does the proof use the hypothesis?


--- Paul R. Halmos

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[數學分析] Mean Value Theorem 與 Lipschitz 連續性:有界導數蘊含 Lipschitz

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