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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 statement cannot be both true and false






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






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






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 predicate of the conclusion and is used in one premise






6. The science and art of reasoning well






7. A vagueness of grammar that disguises or alters meaning






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






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






10. Alters the meaning of a statement through changed emphasis






11. The fallacy of transferring attributes from part to whole






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






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






14. An illegimate appeal to authority






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






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






17. An argument based merely on the passage of time






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






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






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






21. Difference of opinion or perception






22. Contains the minor term






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






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






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






26. A concept that can be expressed precisely






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






28. Secretly assuming what you are trying to prove






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






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






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






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






33. An argument that uses only hypothetical statements






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






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






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






37. A statement that reverses the subject and predicate






38. Is valid and has true premises






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






40. 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






41. The fallacy of transferring attributes from whole to part






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






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






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






45. A sentence which is either true or false






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






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






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






49. An argument that uses both hypothetical and categorical statements






50. Any statement is either true or false