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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.
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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 statement which can be inferred directly from another statement






2. An illegitimate appeal to a majority






3. A sentence which is either true or false






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






5. An illegitimate appeal to force






6. 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






7. A statement cannot be both true and false






8. Secretly assuming what you are trying to prove






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






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






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






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






13. A concept that can be expressed precisely






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






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






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






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






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






19. The fallacy of transferring attributes from whole to part






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






21. Is valid and has true premises






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






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






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






25. Difference of opinion or perception






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






27. Deals directly with the proper modes of reasoning






28. An argument that uses only hypothetical statements






29. The science and art of reasoning well






30. An argument based merely on the passage of time






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






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






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






35. The fallacy of transferring attributes from part to whole






36. Alters the meaning of a statement through changed emphasis






37. Making an argument based on a false dilemma






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






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






40. A hasty generalization






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






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






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






44. The premise containing the major term






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






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






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






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






49. Found once in each premise






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







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