本刊2006年第1期载有《从概率角度分析“一定是”,“不一定是”,“一定不是”的否定》一文(以下简称《否定》).综观全文,所谈乃是在演绎推理中如何处理“必然”(“一定”)、“可能”、“不可能”这一类用语的问题,与概率并无任何关联.《否定》所谈及的这个问题,在逻辑学界早已 The first issue of this volume in 2006 contained “A negation” analysis of the “must be”, “not necessarily”, and “certainly not” from the perspective of probability (hereinafter referred to as “negation”). Looking at the full text, the talk is deductive. How to deal with the problems of “necessity” (“definite”), “possible”, and “impossible” in reasoning has nothing to do with probability. The problem discussed in “Negation” has long been known in logic circles.