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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. An illegimate appeal to authority






2. 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






3. Found once in each premise






4. The premise containing the major term






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






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






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






8. Contains the minor term






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






10. A question crafted to exclude any possible legitimate response






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






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






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






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






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






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






17. 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






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






19. The fallacy of transferring attributes from whole to part






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






21. The science and art of reasoning well






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






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






24. The fallacy of transferring attributes from part to whole






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






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






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






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






29. Alters the meaning of a statement through changed emphasis






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






31. Difference of opinion or perception






32. 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






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






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






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






36. An argument from lack of evidence






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






38. A statement cannot be both true and false






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






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






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






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






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






44. A hasty generalization






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






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






47. Secretly assuming what you are trying to prove






48. A concept that can be expressed precisely






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






50. A sentence which is either true or false