PHI 1101 Study Guide - Midterm Guide: Principle Of Bivalence, Enthymeme, Deductive Reasoning
15 Mar 2016
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2016-03-15 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Phi 1101: reasoning and critical thinking: additional concepts. It is characteristic of the statements we are dealing with that they obey the law of excluded middle, also known as the law of bivalence, which asserts that every statement must be either true or false. In other words, any middle position between truth and falsity is excluded. Law of excluded middle it follows that, for any given statement and the negation of that statement, it must be the case that one of them is true and one false. The statements we are dealing with also obey what is known as the. Law of non-contradiction, which says that it is impossible for both a statement and its negation to be true at the same time. In other words, at one and the same time, one cannot truthfully both assert and deny that something is the case. (cid:1) (cid:1) (cid:1) (cid:1)
