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Quiz: Syllogisms

5 questionsNo time limitPass: 60%+10 XP on first pass

All, some, no — draw each statement as circles and test every conclusion. Covers "either-or" cases and the possibility questions that trick most students.

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  1. Question 1

    Statements: All pens are blue. All blue things are cheap. Conclusion: All pens are cheap. Does it follow?

  2. Question 2

    Statements: Some boys are tall. Some tall people are smart. Conclusion: Some boys are smart. Does it follow?

  3. Question 3

    Statements: No cat is a dog. All dogs are pets. Which conclusion definitely follows?

  4. Question 4

    Statements: All books are papers. Which is NOT necessarily true?

  5. Question 5

    Statements: All mangoes are fruits. Some fruits are sour. Conclusion: All mangoes being sour is a possibility. Does it follow?