The Notecards

Question 1

1. If A, then B. 2. Not B. 3. So, not A

Answer 1

Modus tollens

Question 2

1. If A, then B. 2. If B then C. 3. So, if A then C

Answer 2

Hypothetical syllogism

Question 3

1. Either A or B. 2. Not A/B. 3. So, B/A

Answer 3

Disjunctive syllogism

Question 4

1. Either A or B. 2. If A then C. 3. If B then D. 4. So, either C or D

Answer 4

Constructive dilemma

Question 5

A, only if C

Answer 5

If A then C

Question 6

1. If A, then B. 2. A. 3. So, B

Answer 6

Modus pones