The problem of demarcation is of demarcation for science; the problem of induction is of correctness of induction.
自休谟以来 ，归纳问题一直是困扰西方经验主义科学家和哲学家的难题。
Many philosophers have tried to solve the problem of demarcation in the following terms: a statement constitutes knowledge if sufficiently many people believe it sufficiently strongly.
许多哲学家试图按照下面的说法来解决分界问题：如果足够多的人足够强烈地相信一个陈述，那么，这个陈述就构成了知识。
But that raises a major problem of demarcation and again this is the problem that has echoed down the centuries since.
但那又引出了关于界限划分的问题，这个问题在历史长河中再次回荡百年。
This article points out the methods to solve the derivative of piecewise function and discusses the derivative problem at point of demarcation of piecewise function in detail.
本文主要叙述分段函数的求导方法，并对分段函数在分界点处的求导作了细致的讨论。
This article points out the methods to solve the derivative of piecewise function and discusses the derivative problem at point of demarcation of piecewise function in detail.
本文主要叙述分段函数的求导方法，并对分段函数在分界点处的求导作了细致的讨论。
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