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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 relationship between a universal and particular statement of the same quality - in which the truth of the universal necessitates the truth of the particular






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






3. Any statement is either true or false






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






5. 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






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






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






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






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






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






11. Alters the meaning of a statement through changed emphasis






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






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






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






15. Found once in each premise






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






17. A concept that can be expressed precisely






18. An illegimate appeal to authority






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






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






21. An argument that uses only hypothetical statements






22. Is valid and has true premises






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






24. Contains the minor term






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






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






27. A vagueness of grammar that disguises or alters meaning






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






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






30. A sentence which is either true or false






31. The fallacy of transferring attributes from part to whole






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






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






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






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






36. An illegitimate appeal to a majority






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






38. A statement cannot be both true and false






39. An illegitimate appeal to force






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






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






42. Deals directly with the proper modes of reasoning






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






44. A statement that reverses the subject and predicate






45. A hasty generalization






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






47. An argument based merely on the passage of time






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






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






50. 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