怀疑论既可以理解为某种不充分决定性(underdetermination)原理的必然结果,也可以理解为某种演绎闭合(closure)原理的产物。这两种认知原理以及论证方式有何关系呢?在深入分析怀疑论论证结构的基础上,布鲁克勒(Anthony Brueckner)认为怀疑论论证必须求助于不充分决定性原理,但 Skepticism can be understood both as a corollary of some underdetermination principle and as a product of some kind of closure principle. On the basis of an in-depth analysis of the skeptic argument structure, Anthony Brueckner argues that the skeptic argument must resort to the principle of inadequacy and decisiveness. However,