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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. If a statement is true - then it is true






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






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






4. An illegitimate appeal to a majority






5. A three letter description of the types of categorical statements it contains when arranged in stadard order






6. An illegimate appeal to authority






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






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






9. Making an argument based on a false dilemma






10. An argument based merely on the passage of time






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






12. A question crafted to exclude any possible legitimate response






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






14. 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






15. Difference of opinion or perception






16. Found once in each premise






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






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






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






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






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






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






23. A vagueness of grammar that disguises or alters meaning






24. The fallacy of transferring attributes from part to whole






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






26. An argument from lack of evidence






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






28. A hasty generalization






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






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






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






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






33. An argument that uses only hypothetical statements






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






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






36. Contains the minor term






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






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






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






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






41. Any statement is either true or false






42. The science and art of reasoning well






43. A statement cannot be both true and false






44. The fallacy of transferring attributes from whole to part






45. Secretly assuming what you are trying to prove






46. Deals directly with the proper modes of reasoning






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






48. 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






49. A verbal disagreement is a misunderstanding due to differing definitions to differing definitions for one or more words






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