Studies and Exercises in Formal Logic: Including a Generalisation of Logical Processes in Their Application to Complex Inferences

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Macmillan and Company, 1884 - 414 páginas
 

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Página 269 - My cousin Westmoreland ! No, my fair cousin : If we are mark'd to die, we are enow To do our country loss ; and if to live, The fewer men, the greater share of honour.
Página 1 - is a word taken at pleasure to serve for a mark which may raise in our mind a thought like to some thought we had before, and which being pronounced to others, may be to them a sign of what thought the speaker had •(• before in his mind.
Página 241 - If A is B, C is D ; and if E is F, G is H ; But either C is not D, or G is not H ; Therefore either A is not B, or E is not F.
Página 352 - That wherever the properties A and B are both absent, the properties C and D are both absent also; and vice versa, where the properties C and D are both absent, A and B are both absent also. Let it then be required from the above to determine what may be concluded in any particular instance from the presence of the property A with respect to the presence or absence of the properties B and (7, paying no regard to the property D.
Página 266 - 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.
Página 250 - What worst relation of subject and predicate, subsists between either of two terms and a common third term, with which one, at least, is positively related ; — that relation subsists between the two terms themselves...
Página 265 - Testimony is a kind of evidence which is very likely to be false : the evidence on which most men believe that there are pyramids in Egypt is testimony : therefore the evidence on which most men believe that there are pyramids in Egypt is very likely to ba false.
Página iii - Fcap. 8vo. 31. 6d. THE PRINCIPLES OF SCIENCE. A Treatise on Logic and Scientific Method. New and Revised Edition. Crown 8vo. 12s. 6d. STUDIES IN DEDUCTIVE LOGIC. Second Edition. Crown 8vo. 6s. Keynes. — FORMAL LOGIC, Studies and Exercises in. Including a Generalisation of Logical Processes in their application to Complex Inferences. By JOHN NEVILLE KEYNES, MA, late Fellow of Pembroke College, Cambridge.

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