Test your basic knowledge |

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






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






3. Found once in each premise






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






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






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






7. A vagueness of grammar that disguises or alters meaning






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






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






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






11. A word is ambiguous if it has more than one possible meaning






12. A statement that reverses the subject and predicate






13. A question crafted to exclude any possible legitimate response






14. An argument from lack of evidence






15. A genus of a term is a term that is more general - broad - or abstract than the original term and includes it






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






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






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






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






20. 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






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






22. The science and art of reasoning well






23. An illegitimate appeal to a majority






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






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






26. An illegimate appeal to authority






27. The quantity of a statement is the scope of its claim about the extension of the subject: universal (entire extension) or particular (partial)






28. The fallacy of transferring attributes from whole to part






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 falsity of the particular necessitates the falsity of the universal






31. Deals directly with the proper modes of reasoning






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






33. A sentence which is either true or false






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






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






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






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






38. A concept that can be expressed precisely






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






40. Difference of opinion or perception






41. Improperly assuming that a sequence in time implies a cause and effect






42. A hasty generalization






43. An argument that uses only hypothetical statements






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






45. An illegitimate appeal to force






46. Any statement is either true or false






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






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






49. The premise containing the major term






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