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Logic 101 Practice Test: Formal Logic - Categorical Propositions
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Formal logic is logic that deals with the form or logical structure of statements and propositions.  In syllogistic or traditional logic, a categorical proposition is a statement that affirms or denies the predicate of all or part of the subject.  Categorical propositions are important because they provide additional context by comparing one thing to another.  Here are the four types of categorical propositions: A-propositions: All S are P E propositions: All S are not P I propositions: Some S are P O propositions: Some S are not P  Propositions that refer to all or none are called... Show more
Logic 101 Practice Test: Formal Logic - Categorical Propositions
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25 Questions

1. An eagle circled overhead.
2. In Categorical Proposition 1C, the quantity is:
3. Some reclusive gnomes are not playful sprites. Therefore, some playful sprites are not reclusive gnomes.
4. All except the welders got a raise.
5. There is a statue in the yard.
6. Tulips are blooming in the garden.
7. Given the categorical proposition 'All elections are turning points.' If both the quality and the quantity are changed, the resulting proposition is:
8. Which of the following categorical propositions is in standard form?
9. All except the skaters won a medal.
10. A few paintings are not for sale.
11. Some guilty defendants are not believable witnesses. Therefore, some unbelievable witnesses are not innocent defendants.
12. Some dark haired pixies are elves that play tricks. Therefore, some elves that do not play tricks are light haired pixies.
13. No tooth fairies are clumsy buffoons. Therefore, it is false that all tooth fairies are clumsy buffoons.
14. No unicorns are goats. Therefore, it is false that all unicorns are goats.
15. The statement 'Some climatic changes are occurrences caused by interstellar dust' is a(n):
16. A child screamed.
17. It is false that no exercise machines are cumbersome devices. Therefore, all exercise machines are cumbersome devices.
18. Some student loans are not lifetime burdens. Therefore, some lifetime burdens are not student loans.
19. All holiday parades are colorful events. Therefore, some holiday parades are colorful events.
20. Some religious displays are violations of the First Amendment. Therefore, some violations of the First Amendment are religious displays.
21. It is false that some veterinarians are not animal lovers. Therefore, some veterinarians are animal lovers.
22. It is false that some serial killers are not deranged psychopaths. Therefore, all serial killers are deranged psychopaths.
23. It is false that no blue jays are pesky creatures. Therefore, all blue jays are pesky creatures.
24. Which of the following categorical propositions is in standard form?
25. It is false that some funerals are gleeful occasions. Therefore, some funerals are not gleeful occasions.

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