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






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






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






4. An argument that uses both hypothetical and categorical statements






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






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






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






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






9. Any statement is either true or false






10. An argument that uses only hypothetical statements






11. A statement cannot be both true and false






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






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






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






15. The science and art of reasoning well






16. The fallacy of transferring attributes from part to whole






17. A vagueness of grammar that disguises or alters meaning






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






19. An argument based merely on the passage of time






20. A number from 1 to 4 identifying the placement of its middle term






21. An illegimate appeal to authority






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






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






24. Alters the meaning of a statement through changed emphasis






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






26. An illegitimate appeal to a majority






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






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






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






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






31. A statement that reverses the subject and predicate






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






33. The fallacy of transferring attributes from whole to part






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






35. Deals directly with the proper modes of reasoning






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






37. A hasty generalization






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






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






40. Secretly assuming what you are trying to prove






41. Difference of opinion or perception






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






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






44. Is valid and has true premises






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






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






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






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






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






50. 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