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Instructions: Ten sets of premises are given below in the "Premises" table. Your job is to assume that the premises as given are true, and then determine whether the conclusion follows logically from the premises. Check the "True" button if it does, and the "False" button if it does not. When done, select the "Check Answers" button to check your answers.
| Premises | Conclusion | Follows? | Answer |
|---|---|---|---|
| All dogs are animals. | True.
| |
| Ted votes for the liberal candidate. | False.
| |
| At least two people in the room are of the same handedness. | True.
| |
| It is more likely that (a) Donny takes part in an experimental drug/therapy program to increase learning and motivation, which is highly successful, and four years later Donny graduates with the top grade in his class than (b) Four years later Donny graduates with the top grade in his class. | False.
| |
| If I have fun tonight, then I will get a bad grade on the test. | True.
| |
| Using Golden brand margarine reduces the risk of heart disease. | False.
| |
| Browntown is closer to Jonesborough than Smithville. | False.
| |
| If a book is overpriced, then it costs over $100. | False.
| |
| Some flying squirrels are not birds. | True.
| |
| It is not necessarily true that all mortals are men. | True.
|
If you are interested in other logical-thinking puzzles, you may also want to try
Test Your Logical Thinking and
Wason's Four-Card Task.
