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Introductory Logic Vocab

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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






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






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






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






5. An argument in which a statement is unstated and assumed. Specifically - it is a syllogism with one assumed statement






6. An illegitimate appeal to force






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






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






9. Attacking a position by pointing out how the arguer came to hold it






10. A concept that can be expressed precisely






11. A statement of the opposite quality with a negated predicate






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






13. An argument that uses only hypothetical statements






14. 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






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






16. A hasty generalization






17. An illegimate appeal to authority






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






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






20. The fallacy of transferring attributes from whole to part






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






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






23. Arguments that fail to establish their conclusions because of a weakness in logical structure






24. The fallacy of transferring attributes from part to whole






25. A diagram of the basic relationships between statements with the same subject and predicate






26. A statement that reverses and negates both the subject and predicate of the original






27. 'it does not follow'; that an argument is invalid






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






29. Is valid and has true premises






30. A syllogism is valid if and only if the conclusion is necessarily true given that the premises are true






31. An illegitimate appeal to a majority






32. Two statements are subcontraries if and only if both can be true but both cannot be false






33. Found once in each premise






34. An argument that uses both hypothetical and categorical statements






35. 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






36. The quantity of a statement is the scope of its claim about the extension of the subject: universal (entire extension) or particular (partial)






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






38. A sentence which is either true or false






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






40. Secretly assuming what you are trying to prove






41. A real disagreement is an actual inconsistancy between two statements: they cannot both be true at the same time






42. A statement cannot be both true and false






43. The result of the condition - the part after the 'then'






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






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






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






47. When there appears to be inconsistency - we have a disagreement






48. Making an argument based on a false dilemma






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






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