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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. Difference of opinion or perception






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






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






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






5. 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






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






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






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






9. 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






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






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






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






13. The fallacy of transferring attributes from part to whole






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






15. An argument from lack of evidence






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






17. An argument that uses both hypothetical and categorical statements






18. The science and art of reasoning well






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






20. Making an argument based on a false dilemma






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






22. Is valid and has true premises






23. A statement that reverses the subject and predicate






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






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






26. Secretly assuming what you are trying to prove






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






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






29. The fallacy of transferring attributes from whole to part






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






31. Alters the meaning of a statement through changed emphasis






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






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






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






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






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






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






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






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






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






41. A vagueness of grammar that disguises or alters meaning






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






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






44. An illegimate appeal to authority






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






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






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






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






49. A hasty generalization






50. Contains the minor term







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