[微積] 微積分有關極限的證明

[yosifu ()]

Without using any negative words,

state what it means to say that the limit of f(x),

as x approaches a, is not L.

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◆ From: 114.44.210.83
推 APM99       :+++
推 newversion  :εδ改成否定式:  for all --> 改成 exist one
→ suhorng     :﹁(forall x. P(x)) = exists x. ﹁P(x)