PHL145H5 Lecture Notes - Lecture 8: Deductive Reasoning, Hasty Generalization, Lottery Paradox
Document Summary
Inductive (invalid; p-t & c-f) strong (unlikely not impossible p-t & c-f) a deductive argument is one that aspires to validity. But an argument can be good without aspiring to validity. 1. the sun has risen every day in the history of the world. 2. the sun will rise tomorrow no connective induced not easy to imagine p-t & c-f three things to note here: it is an argument: the premise is being offered as a reason for the conclusion. But it is logivally possible for the premise to be true when the conclusion is false. so the argument is not valid is that a reason for dismissing the argument? no. Arguments can offer two kinds of reasons for their conclusions: conclusive. if the premises are true, the conclusion must be true. Defeasible. if the premises are true, it is reasonable to believe the conclusion, absent further considerations against it.
