Deductive Reasoning and Decision Making
begin with some specific premises that are true and you must judge whether those premises allow you to draw a particular conclusion based on logic
What is deductive reasoning?
statement you are making the decision about
What is proposition
affirming the antecedent, affirming the consequent, denying the antecedent, and denying the consequent
What are the four kinds of conditional reasonings
Conditional (propositional) reasoning, and syllogism
What are the two types of deductive reasoning?
confirming that the statement is true/valid
What is affirm?
This is a dog, therefore it is a mammal
What is an example of affirm the antecedent?
describes the relationship between conditions
If.... then
What is conditional reasoning?
confirm the statement is false/invalid
What is Deny?
It is not a dog therefore it is not a mammal
What is an example of denying the antecedent
two statements that we must assume to be true, plus a conclusion
What is Syllogism?
if statement comes first
What is antecedent
some psychology majors are friendly people
some friendly people are concerned about poverty
therefore some psychology majors are concerned about poverty
What is an example of syllogism.
Consequence comes second