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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 - often a relative pronoun or adverb - that refers to a broad range of things or times






2. Difference of opinion or perception






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






4. A vagueness of grammar that disguises or alters meaning






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






6. A self-contradiction is a statement that is false due to its logical structure






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






8. A sentence which is either true or false






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






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






11. An argument from lack of evidence






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






13. Deals directly with the proper modes of reasoning






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






15. Any statement is either true or false






16. 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






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






18. A hasty generalization






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






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






21. Deductive argument consisting of three statements in categorical form that together use only three terms - called the major - minor - and middle






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






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






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






25. Making an argument based on a false dilemma






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






27. Secretly assuming what you are trying to prove






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






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






30. The fallacy of transferring attributes from whole to part






31. An illegitimate appeal to a majority






32. Contains the minor term






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. Is valid and has true premises






35. The premise containing the major term






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






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






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






39. A number from 1 to 4 identifying the placement of its middle term






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






41. The fallacy of transferring attributes from part to whole






42. A statement cannot be both true and false






43. Found once in each premise






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






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






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






47. An argument that uses only hypothetical statements






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






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






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