A Guide to Syllogism, Or, A Manual of Logic: Comprehending an Account of the Manner of Disputation Now Practised in the Schools at Cambridge; with Specimens of the Different Acts. Adapted to the Use of the Higher Forms in Grammar Schools, and of Junior Students at the University

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Henry G. Bohn, 1832 - Logic - 133 pages
 

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Page 83 - The parts or members must be opposed; ie must not be contained in one another: eg if you were to divide " book" into "poetical, historical, folio, quarto, French, Latin,
Page 49 - If A is B, C is D ; and if E is F, G is H ; But either A is B or E is F ; Therefore either C is D or G is H.
Page 46 - A disjunctive syllogism is when the major proposition is disjunctive ; as, The earth moves in a circle^ or an ellipsis ; But it does not move in a circle ; Therefore, it moves in an ellipsis. 564. A disjunctive syllogism may have many members, or parts ; thus, It is either spring, summer, autumn, or winter ; But it is not spring, autumn, nor summer; Therefore, it is winter.
Page 93 - a man speaking"). "An unburied corpse" (you might say, "a buried corpse"). Term (A Relative), that which expresses an object viewed in relation to the whole, or to another part of a more complex object of thought; as "half" and "whole," "master and servant." Such nouns are called correlative to each other ; nor can one of them be mentioned without a notion of the other being raised in the mind. Term (A Simple) expresses a completed act of apprehension, but no more ; and may be used alone either as...
Page 26 - When the middle term is made the subject of the major premiss, and the predicate of the minor...
Page 9 - Indefinite is understood as a universal: eg, birds have wings ; ie all: birds are not quadrupeds ; ie none: in contingent matter, (ie where the terms partly (ie sometimes) agree, and partly not) an Indefinite is understood as a particular ; eg, food is necessary to life...
Page 54 - Sorites; in which the Predicate of the first proposition is made the Subject of the next; and so on, to any length, till finally the Predicate of the last of the Premises is predicated (in the Conclusion) of the Subject of the first: eg A is B, B is C, C is D, D is E; therefore A is E.
Page 92 - foolish," both coming under the class of mental qualities. There are some objects to -which neither of such terms is applicable ; a stone is neither wise nor foolish. Term (A Definite), one which marks out an object or class of beings ; as " Caesar,"
Page 75 - A singular proposition is a universal one; for it applies to the whole of its subject. 16. Whatever tends to withdraw the mind from pursuits of a low nature deserves to be promoted ; classical learning does this, since it gives us a taste for intellectual enjoyments; therefore it deserves to be promoted.
Page 22 - No term must be distributed in the conclusion which was not distributed in one of the premises...

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