PHIL 210 Study Guide - Quiz Guide: Deductive Reasoning, Formal System, Classical Logic

• School: Concordia University
• Department: Philosophy
• Course: PHIL 210
• Professor: Gregory Lavers

Document Summary

Chapter 1 the parts of public thinking deductive argument. Definition 2: arguments are linguistic or logical object. Argument is a set of sentences or propositions, factoring out considerations about the speaker, the audience, the context, and the boarder goal of the argument. This set aside if audience will find it reasonable. In this sense a good argument is defined as sound, meaning valid: premises are all relevant to conclusion, in a way that if premises are true, conclusion must be true (no way for premise to be. True and conclusion to be false) and all true premises. More precisely, all essential premises (premises that event when irrelevant premises are removed, remain) must be true. So if argument fails, we can fix it to see whether its invalid or the premises are not true. Soundess doesn"t depend on how effective it is.