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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. A word is ambiguous if it has more than one possible meaning






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






3. Two statements are logically equivalent if they imply one another






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






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






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






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






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






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






10. An illegitimate appeal to force






11. Making an argument based on a false dilemma






12. An argument based merely on the passage of time






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






14. Difference of opinion or perception






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






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






17. Secretly assuming what you are trying to prove






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






19. A concept that can be expressed precisely






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






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






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






23. Is valid and has true premises






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






25. Contains the minor term






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






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






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






29. Two statements are in contradiction if and only if they always have opposite truth values






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






31. An illegimate appeal to authority






32. Deals directly with the proper modes of reasoning






33. The conclusion of an argument is the statement which appears to be implied by the other statements in the argument - which are called premises






34. A genus of a term is a term that is more general - broad - or abstract than the original term and includes it






35. A statement cannot be both true and false






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






37. 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






38. Found once in each premise






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






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






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






42. The premise containing the major term






43. A statement that reverses the subject and predicate






44. The fallacy of transferring attributes from part to whole






45. Any statement is either true or false






46. An argument that uses only hypothetical statements






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






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






49. An illegitimate appeal to a majority






50. A vagueness of grammar that disguises or alters meaning