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






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






3. Any statement is either true or false






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






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






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






7. A sentence which is either true or false






8. An illegitimate appeal to force






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






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






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






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






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






14. An argument based merely on the passage of time






15. Contains the minor term






16. An illegitimate appeal to a majority






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






18. A question crafted to exclude any possible legitimate response






19. The sum of all the common attributes denoted by the term






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






21. Difference of opinion or perception






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






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






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






25. Secretly assuming what you are trying to prove






26. The premise containing the major term






27. The set of all terms not included in the given term






28. A concept that can be expressed precisely






29. The science and art of reasoning well






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






31. Alters the meaning of a statement through changed emphasis






32. 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






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






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






35. A hasty generalization






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






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






38. A statement cannot be both true and false






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






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






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






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






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






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






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






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






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






48. Is valid and has true premises






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






50. A vagueness of grammar that disguises or alters meaning







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