“善”之逻辑分析

道德基本概念的“善”是一个二元谓词 ,即当且仅当X满足了Y的道德需要或者X履行了Y制定的道德规范时 ,X才是善的。由于道德关系的客体X、主体Y自身也是含有空位的命题函项 (谓词 ) ,这表明“善”同时还是一个二阶或高阶谓词 ,当X、Y取不同值时 ,“善”也具有不同的值 ,这就导致了“善”“恶”不确定性的困惑。运用现代逻辑的谓词理论 ,找到消解“善”的困惑的方法并得出“善”的困惑不可消解的结论

The logic analysis of "good

Good", as a basic moral concept, is a dualistic predicate. That is to say, X is good if X meets the need of morality, or X suits the moral standard of Y . The object X and the subject Y of relationship of moral value are propositional functions(or predicates) that contain vacancy, which indicates that "good" is a predicate of predicate (the predicate of second of higher level). When X as well as Y , is given different assignment respectively, "good" is also different, which will lead to the indefinite perplexity of "good" and "evil". If a moral proposition is put into circumstance by applying the predicate theory of modern logic, "good" and "evil" will be definitive. However, human beings can not get rid of the perplexity of good at present.