Illogical Arguments Flashcards
1
Q
denying the antecedent
A
If P, then Q.
Not P.
Therefore, not Q.
2
Q
affirming the consequent
A
If P, then Q.
Q.
Therefore, P.
3
Q
multiple denying the antecedent
A
If P, then Q.
If Q, then R.
Not P.
Therefore, not R.
4
Q
multiple affirming the consequent
A
If P, then Q.
If Q, then R.
R.
Therefore, P.
