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






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






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






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






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






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






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






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






9. A question crafted to exclude any possible legitimate response






10. A vagueness of grammar that disguises or alters meaning






11. A statement cannot be both true and false






12. An argument that uses both hypothetical and categorical statements






13. Is valid and has true premises






14. A concept that can be expressed precisely






15. Contains the minor term






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






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






18. 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






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






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






21. Secretly assuming what you are trying to prove






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






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






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






25. Difference of opinion or perception






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






27. The fallacy of transferring attributes from whole to part






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






29. An illegimate appeal to authority






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






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






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






33. A statement that reverses the subject and predicate






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






35. Any statement is either true or false






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






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






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






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






40. An argument based merely on the passage of time






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






42. The science and art of reasoning well






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






44. The fallacy of transferring attributes from part to whole






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






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






47. Deals directly with the proper modes of reasoning






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






49. Found once in each premise






50. Making an argument based on a false dilemma