SSH 105 Lecture Notes - Logical Reasoning, Deductive Reasoning
Document Summary
Recall: a deductive argument aims to provide logically conclusive support for the conclusion. But not all arguments are deductive: in some cases, premises are intended to give probable, not conclusive support for the conclusion. An argument is inductively strong if and only if the conclusion is probably true, given the premises. An argument is probably true given the premises. Inductively strong argument: (1) quitting smoking tends to improve one"s health. (2) mary has quit smoking. (3) mary"s health will improve. The premise doesn"t guarantee that the premises are true. This tells us that this is an inductive argument. Inductively weak argument: (1) a few police officers are corrupt. (2) jim is a police officer (3) jim is corrupt. Possible, but it"s completely true that jim is corrupt. He could possibly be corrupt, but this is not a good argument.