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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. The condition - the part following the 'if'






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






4. An illegimate appeal to authority






5. A vagueness of grammar that disguises or alters meaning






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






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






9. Is valid and has true premises






10. 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






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






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






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






16. 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






17. The science and art of reasoning well






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






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






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






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






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






23. An argument from lack of evidence






24. Secretly assuming what you are trying to prove






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






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






27. Difference of opinion or perception






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






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






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






31. The premise containing the major term






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






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






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






35. The fallacy of transferring attributes from whole to part






36. A concept that can be expressed precisely






37. Found once in each premise






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






39. Alters the meaning of a statement through changed emphasis






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






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






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






43. Deals directly with the proper modes of reasoning






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






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






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






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






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






49. A question crafted to exclude any possible legitimate response






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