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Introductory Logic Vocab

  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. An illegitimate appeal to force

2. Is valid and has true premises

3. Arguments that confuse the real issue with multiple - vague - or otherwise unclear meanings

4. The subject of the conclusion and is used in the other premise

5. Two statements are related by implication if the truth of one requires the truth of the other

6. The sum of all the common attributes denoted by the term

7. A vagueness of grammar that disguises or alters meaning

8. A hasty generalization

9. Improperly assuming that a sequence in time implies a cause and effect

10. Is a syllogism of the same form as the original - but with obviously true premises and false conclusion - in order to show the original to be invalid

11. Deals directly with the proper modes of reasoning

12. A tautology is a statement which is always true because of its logical structure

13. Any statement is either true or false

14. Two statements are consistent if they can both be true at the same time

15. The set of all terms not included in the given term

16. The premise containing the major term

17. A word - often a relative pronoun or adverb - that refers to a broad range of things or times

18. The predicate of the conclusion and is used in one premise

19. Reasoning with probability from examples or experience to general rules

20. Secretly assuming what you are trying to prove

21. A supported statement is a statement whose truth value depends on evidence or information from outside itself

22. A representation of a syllogism - having statements in standard order with standard abbreviations of its terms

23. A statement that affirms an outcome based on a condition.

24. A popular but invalid (or unhelpful) form of argument

25. Alters the meaning of a statement through changed emphasis

26. Words that set boundaries - referring only to a limited class of things

27. A self-supporting statement is a statement whose truth value can be determined from the statement itself

28. A statement that reverses the subject and predicate

29. Two statements are independant if the truth or falsity of one has no effect on the truth or falsity of the other

30. If a statement is true - then it is true

31. A statement which can be inferred directly from another statement

32. The subject of a statement is the term being described - or about which something is asserted

33. A set of statements - one of which appears to be implied or supported by the others

34. A statement cannot be both true and false

35. Found once in each premise

36. The science and art of reasoning well

37. The fallacy of transferring attributes from whole to part

38. Changing the definition of a term in the middle of an argument

39. Points to an inconsistency between a person's argument and behavior

40. An illegitimate appeal to a majority

41. A sentence which is either true or false

42. A verbal attack on a person rather than his argument

43. The relationship between a universal and particular statement of the same quality - in which the truth of the universal necessitates the truth of the particular

44. Arguments that confuse the issue by pointing to information that is actually irrelevant to the conclusion

45. The fallacy of transferring attributes from part to whole

46. A term that - within a statement - refers to all members of its class

47. An argument based merely on the passage of time

48. Contains the minor term

49. An argument from lack of evidence

50. The extention of a term is the sum of all the individual objects described by it