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Math Help - Lemma & Theorem

  1. #1
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    Question Lemma & Theorem

    Can anyone tell me the meaning of " Lemma " ? Are there any different between "lemma" and "theorem"?
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  2. #2
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    Quote Originally Posted by beta12 View Post
    Can anyone tell me the meaning of " Lemma " ? Are there any different between "lemma" and "theorem"?
    Here's what PlanetMath says:

    "There is no technical distinction between a lemma, a proposition, and a theorem. A lemma is a proven statement, typically named a lemma to distinguish it as a truth used as a stepping stone to a larger result rather than an important statement in and of itself. Of course, some of the most powerful statements in mathematics are known as lemmas, including Zorn's Lemma, Bezout's Lemma, Gauss' Lemma, Fatou's lemma, etc...."

    It appears that lemmas sometimes turn out to be more important than the author originally thought, so sometimes lemmas turn into major theorems.
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  3. #3
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    ic , thanks
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