75. Explain and discuss the doctrine that Induction is based upon the Theory of Probability. [S]
75A. What are the logical grounds of the Law of Error?
76. Explain the nature and use of Classification, the means to, and tests of, its successful performance. [S]
77. What is Definition and what is its use? Mention various difficulties that occur in the process, and show how they are to be met. [S]
78. Propose rules for a good Division and a good Definition, and exemplify the breach of them. [S]
79. Examine the validity of the idea of Real Kinds. [O]
80. What kind of words are indefinable, and why? When do we define by negation and by example? [S]
81. Distinguish between the province and aims of classification and (logical) division. Illustrate. [S]
82. What is an infima species or species specialissima? Compare the use of the terms genus and species in Logic with that which is common in speaking of animals or plants. [S]