文[1],[2]给出一个关于函数单调性的命题,但条件较为苛刻,应用范围非常有限。本文对其进行了推广,使其更具有一般性.%Reference [1]and [2] give a proposition about functional monotony, but its condition is severe and the application range is limitation. This paper extends the proposition and makes it possess generality more.
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