Arm-Chair Logic

Feeling logical today? Here's a little quiz for you to play with. I got them all right when I did it, but then again, I used to teach some basic logic.

Test your own logic - complete our online test below to get your ranking. Read the following premises, and then specify whether or not the arguments are valid or invalid. Then press the "submit" button to get your results.

Question 1.
a) All ducks quack.
b) Donald is a duck.

Conclusion
Therefore: Donald quacks.

Valid Invalid