COGS 100 Week 9 Lecture 1
Reasoning and Decision Making
What kind of processes do you think are involved?
•Memory, perception, logic, reasoning
Types of Reasoning
•Deductive and inductive reasoning
•Deductive: take several props to come to a conclusion, have premises and conclusion. Valid argument:
conclusion must follow from premise. Propositional logic.
•Inductive: conclusion does not have to follow from premises
•Categorical syllogism: all something are something, x is a something, x must be something. Have
•Validity is form, truth is content, not the same
•Conditional syllogism: if... then
•Affirming the antecedent and denying the consequence. Must falsify princ