Psychology 2135A/B Lecture 17: lecture 17: thinking and reasoning

• School: Western University
• Department: Psychology
• Course: Psychology 2135A/B
• Professor: John Paul Minda

Document Summary

Induction based on evidence evidence -> conclusion bottom up. Deduction specific prediction premise and then make a very specific conclusion from that statement -- specific conclusion and then evaluating if tis" a valid deduction top down. Logic a formal description of reasoning facts: use variables. "my friend is waiting by the corner" operators: Deductive logic deductive logic is general to specific making a conclusion about a specific case kinds of deductive logic categorical conditional. Categorical syllogisms classical reasoning reasoning about a class of objects implicit assumption of the classical model categorical reasoning about a whole class or category given some statements, which conclusions are valid and which are not. Condiitonal reasoning if a then b each statement can be positive or negative. The cat is hungry -- the affirmation of the antecedent. She will not eat her food -- the denial of the consequent.