[V09] Exercises



Module: Venn diagrams


Quote of the page

Without effort and change, human life cannot remain good. It is not a finished Utopia that we ought to desire, but a world where imagination and hope are alive and active.

- Bertrand Russell


Help us promote
critical thinking!

Popular pages

  1. What is critical thinking?
  2. What is logic?
  3. Hardest logic puzzle ever
  4. Free miniguide
  5. What is an argument?
  6. Knights and knaves puzzles
  7. Logic puzzles
  8. What is a good argument?
  9. Improving critical thinking
  10. Analogical arguments

This page generates a random list of 10 syllogisms. See if you can determine whether they are valid or not.

Every A is a C.
No B is an A.
Therefore, every C is a B.


Every A is a C.
Every B is a C.
Therefore, every A is a B.


No A is a C.
Every B is a C.
Therefore, no B is an A.


No C is an A.
Every C is a B.
Therefore, no A is a B.


No C is a B.
No B is an A.
Therefore, no A is a C.


Every A is a C.
Every B is a C.
Therefore, every C is a B.


No A is a B.
Every A is a C.
Therefore, every C is an A.


No A is a B.
No C is an A.
Therefore, no C is a B.


Every A is a C.
No B is an A.
Therefore, every C is an A.


Every C is an A.
Every A is a B.
Therefore, every A is a C.


Want more? You can reload this page to generate another list.

previous tutorial next tutorial

homepagetopcontactsitemap

© 2004-2023 Joe Lau & Jonathan Chan