[V05] Exercises



Module: Venn diagrams


Quote of the page

Men are apt to mistake the strength of their feeling for the strength of their argument. The heated mind resents the chill touch and relentless scrutiny of logic.

- William Gladstone


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

a. Is the statement "Every B is a C" true according to this diagram?

b. Is the statement "No A is a B" true according to this diagram?

c. Is the diagram consistent with the statement "Something is A"?

d. "Something is A and it is either B or C." Is this statement true according to this diagram?

e. Is the diagram consistent with the statement "Something is A or B"?

f. This diagram is about different types of mathematical functions. But there is something wrong with it. What is it?

previous tutorial next tutorial

homepagetopcontactsitemap

© 2004-2023 Joe Lau & Jonathan Chan