The Elements of Deductive Logic: Designed Mainly for the Use of Junior Students in the Universities |
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Page xiv
... THIRD and FOURTH EDITIONS , a few slight alterations and additions have been introduced into the Text of some of the Chapters . One or two Notes and a few Examples of Arguments have also been added . In the FOURTH EDITION , the Author ...
... THIRD and FOURTH EDITIONS , a few slight alterations and additions have been introduced into the Text of some of the Chapters . One or two Notes and a few Examples of Arguments have also been added . In the FOURTH EDITION , the Author ...
Page 38
... third case , ' A triangle is a rectilineal figure the sum of whose angles is equal to two right angles , ' ' rectilineal figure ' is , as before , to be regarded as a genus , but the attributive ' having the sum of its angles equal to ...
... third case , ' A triangle is a rectilineal figure the sum of whose angles is equal to two right angles , ' ' rectilineal figure ' is , as before , to be regarded as a genus , but the attributive ' having the sum of its angles equal to ...
Page 40
... third example is an ordi- nary case of a definition . The case of two abstract terms may therefore be regarded as identical , so far as concerns the relation of the predicate to the subject , with that of two common terms which are co ...
... third example is an ordi- nary case of a definition . The case of two abstract terms may therefore be regarded as identical , so far as concerns the relation of the predicate to the subject , with that of two common terms which are co ...
Page 65
... third and most important part of Logic treats of Inferences1 . Wherever we assert a proposition in con- sequence of one or more other propositions , or , in other words , wherever we regard one or more propositions as justifying us in ...
... third and most important part of Logic treats of Inferences1 . Wherever we assert a proposition in con- sequence of one or more other propositions , or , in other words , wherever we regard one or more propositions as justifying us in ...
Page 67
... third example in the same manner : — We may assert ( by virtue of our knowledge of mathematics ) that five points which we have ob- served in the orbit of the planet Mars are situated in the arc of an ellipse . ( Original Proposition ...
... third example in the same manner : — We may assert ( by virtue of our knowledge of mathematics ) that five points which we have ob- served in the orbit of the planet Mars are situated in the arc of an ellipse . ( Original Proposition ...
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Common terms and phrases
abstract terms act or operation analysis argument Aristotle assertion attribute or group Author Balliol College called CHAPTER Clarendon Press cloth collective term College common term conclusion connotation consequently copula Crown 8vo deductive inference DEDUCTIVE LOGIC defined definition denoted differentia disjunctive disjunctive proposition Disjunctive Syllogisms distinction distinguish Distribution of Terms division employed English Extra fcap fallacy fcap formerly Fellow fourteenth legion genus gism group of attributes group of individuals Hamilton's Lectures History human ignoratio elenchi immediate inference inductive instances language Lectures on Logic legitimate Lincoln College logicians major premiss Mansel's middle term minor negative Notes noticed older logicians Oriel College Oxford particular premiss permutation poets predicate probably Professor proposition rectilineal figure regarded relation Roman senate Second Edition singular and collective singular or collective Socrates species student subaltern subject and predicate term expressive thoughts three-sided tion triangles true universal virtue W. W. Skeat word
Popular passages
Page 147 - Persius. The Satires. With a Translation and Commentary. By John Conington, MA, late Corpus Professor of Latin in the University of Oxford. Edited by H. Nettleship, MA Second Edition.
Page 19 - All definitions are of names, and of names only; but, in some definitions, it is clearly apparent, that nothing is intended except to explain the meaning of the word; while in others, besides explaining the meaning of the word, it is intended to be implied that there exists a thing, corresponding to the word.
Page 148 - An Elementary Treatise on Quaternions. By PG TAIT, MA, Professor of Natural Philosophy in the University of Edinburgh ; formerly Fellow of St Peter's College, Cambridge. Second Edition. Demy 8vo. 14*.
Page 79 - If A is B, C is D ; and if E is F, C is D ; But either A is B, or E is F ; Therefore C is D.
Page 101 - to allow every man an unbounded freedom of speech must always be, on the whole, advantageous to the State ; for it is highly conducive to the interests of the Community, that each individual should enjoy a liberty perfectly unlimited, of expressing his sentiments.
Page 122 - For those who are bent on cultivating their minds by diligent study, the incitement of academical honours is unnecessary; and it is ineffectual, for the idle, and such as are indifferent to mental improvement: therefore the incitement of academical honours is either unnecessary or ineffectual.
Page 123 - In a higher world it is otherwise; but here below to live is to change, and to be perfect is to have changed often.
Page 148 - Crown 8vo. cloth, 7s. 6d. A Treatise on Electricity and Magnetism. By J. Clerk Maxwell, MA, FRS, Professor of Experimental Physics in the University of Cambridge.
Page 26 - Thus, for" example, he to whom the geometrical proposition, that the angles of a triangle are together equal to two right angles...
Page 128 - Wood, stones, fire, water, flesh, iron, and the like things, which I name and discourse of, are things that I know. And I should not have known them, but that I perceived them by my senses; and things perceived by the senses are immediately perceived; and things immediately perceived are ideas; and ideas cannot exist without the mind; their existence therefore consists in being perceived; when therefore they are actually perceived, there can be no doubt of their existence.