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Introductory Logic Vocab

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Difference of opinion or perception






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






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






4. Two statements are contrary if and only if they can both be false but cannot both be true






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






6. Is valid and has true premises






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






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






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






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






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






12. A statement cannot be both true and false






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






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






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






16. Any statement is either true or false






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






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






19. An argument that uses both hypothetical and categorical statements






20. The condition - the part following the 'if'






21. Alters the meaning of a statement through changed emphasis






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






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






24. The premise containing the major term






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






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






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






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






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






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






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






32. A question crafted to exclude any possible legitimate response






33. Secretly assuming what you are trying to prove






34. An illegitimate appeal to a majority






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






36. 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






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






38. A statement that reverses the subject and predicate






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






40. Contains the minor term






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






42. An argument that uses only hypothetical statements






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






44. Deals directly with the proper modes of reasoning






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






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






47. Found once in each premise






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






49. A hasty generalization






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







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