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






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






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






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






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






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






8. Difference of opinion or perception






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






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






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






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






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






14. Alters the meaning of a statement through changed emphasis






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






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






17. Is valid and has true premises






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






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






20. A word - often a relative pronoun or adverb - that refers to a broad range of things or times






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






22. A sentence which is either true or false






23. An argument from lack of evidence






24. A hasty generalization






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






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






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






28. 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






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






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






31. Any statement is either true or false






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






33. A question crafted to exclude any possible legitimate response






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






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






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






37. 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






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






39. An illegitimate appeal to a majority






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






41. A concept that can be expressed precisely






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






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






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






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






46. An argument that uses only hypothetical statements






47. The fallacy of transferring attributes from whole to part






48. The science and art of reasoning well






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






50. An argument that uses both hypothetical and categorical statements