PHIL 110 Lecture 12: Lecture 12
15 Mar 2016
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Document Summary
The truth-tables essentially, these are like multiplication tables. There is the compact style and the extended style. We can use more than two values . m, n , o, p. We can study formulas with many operators (not just multiplication. In the extended style, which will be the one we use, the main operator in (x + y ) x z s the multiplication operator. So for each, numerical values assignment (row) the numerical value of (x + y ) x z is the entry on the same row but underneath x. Truth-table will work in the same way as those numerical tables. Numerical value of an arithmetical formula = the value of a logical formula. We are now able to summarize the knowledge we have built on accepting and denying statements of the form ~p, o * q, p v q, p > q, and p q. When we accept the antecedent and deny the consequent.
