Valid Arguments and Logical Equivalences Flashcards
1
Q
What is an argument?
A
A sequence of statements known as premises ending in a conclusion
2
Q
How do we know if an argument is valid?
A
only if all the premises are True and the conclusion is also True
3
Q
What is a fallacy?
A
an error in reasoning that results in an invalid argument
4
Q
Types of fallacy
A
converse error and inverse error
5
Q
Types of valid arguments
A
method of denying, hypothetical syllogism, method of affirming, method of denying, disjunction syllogism, conjunctive, conjunctive simplification, disjunctive addition
6
Q
When are two expressions logically equivalent?
A
if they both yield the same truth table
