LING 110g Lecture Notes - Lecture 11: Junk Food, Definite Description, Propositional Calculus
Document Summary
When people hear the words or they assume it is exclusive because that s more. Standard propositional logic, or is understood as the inclusive or. But how or is interpreted in an actual context is influenced by pragmatic factors great deal. (in fact, there are other usages of or in english: you eat this or i will finish it ) That is why using actual english sentences to illustrate the truth tables including or often does not help you understand how the truth tables work. S1 entails s2 = in every tow (situation) where s1 has value t(rue), s2 also has value. S1 is equivalent to s2 = in every row, the truth value of se and that of s2 are the same. S1 is not equivalent to s2 = at least in one row, the truth value of s1 and that of s2 are different from each other.
