PHIL145 Chapter Notes - Chapter 1: Modus Ponens, Material Conditional, Modus Tollens
24 Aug 2016
School
Department
Course
Professor
Document Summary
Deductive arguments- logically airtight, or are intended to be so. Event happened for reason identifiable cause (not random/inexplicable) or stricter use of word meaning that action/belief has justification- rationally defended on basis of evidence. Under many circumstances , important to find out whether one of the competing claims is genuine mistake. To present a claim as if were true is to assert it. To assert is to undertake the obligation of defending or retracting the assertion in the fact of questioning or when confronted with evidence to the contrary. Argument = premises given in support of conclusion. Sound argument = proves its conclusion is true. Assertions rest on arguments that support them, usually implicitly. Understanding how your own reasoning succeeds and fails. Might strengthen or weaken some opinion you"d already held or convince yourself of something new. Definition 1: argumentation is rational practice- premises make it reasonable to believe conclusion.
