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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.
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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 predicate of the conclusion and is used in one premise






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






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






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






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






6. Deals directly with the proper modes of reasoning






7. A statement that reverses the subject and predicate






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






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






10. An argument that uses both hypothetical and categorical statements






11. The science and art of reasoning well






12. 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






13. Alters the meaning of a statement through changed emphasis






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






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






16. An argument from lack of evidence






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






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






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






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






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






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






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






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






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






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






27. An argument that uses only hypothetical statements






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






29. A statement cannot be both true and false






30. 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






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






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






33. A hasty generalization






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






35. Difference of opinion or perception






36. Contains the minor 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. The set of all terms not included in the given term






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






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






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






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






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






44. Is valid and has true premises






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






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






47. The premise containing the major term






48. An argument based merely on the passage of time






49. An illegitimate appeal to a majority






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







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