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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 verbal attack on a person rather than his argument






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






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






4. Making an argument based on a false dilemma






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






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






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






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






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






10. An argument that uses only hypothetical statements






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






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






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






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






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






16. A statement cannot be both true and false






17. An illegimate appeal to authority






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






19. 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






20. Secretly assuming what you are trying to prove






21. Attacking a position by pointing out how the arguer came to hold it






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






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






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






25. Difference of opinion or perception






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






27. A hasty generalization






28. An argument from lack of evidence






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






30. Alters the meaning of a statement through changed emphasis






31. An illegitimate appeal to a majority






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






33. A question crafted to exclude any possible legitimate response






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






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






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






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






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






39. A sentence which is either true or false






40. The fallacy of transferring attributes from part to whole






41. A vagueness of grammar that disguises or alters meaning






42. The premise containing the major term






43. Contains the minor term






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






45. 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






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






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






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






49. The science and art of reasoning well






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