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






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






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






4. An illegitimate appeal to a majority






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






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






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






8. Secretly assuming what you are trying to prove






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






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






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






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






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






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






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






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






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






18. Making an argument based on a false dilemma






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






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






21. An argument from lack of evidence






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






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






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






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






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






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






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






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






30. An illegimate appeal to authority






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






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






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






34. The fallacy of transferring attributes from part to whole






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






36. 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






37. A statement that reverses the subject and predicate






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






39. 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






40. Difference of opinion or perception






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






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






43. 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






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






45. Contains the minor term






46. The fallacy of transferring attributes from whole to part






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






48. The science and art of reasoning well






49. Found once in each premise






50. A vagueness of grammar that disguises or alters meaning