The Problem of LogicA. and C. Black, 1908 - 500 من الصفحات |
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الصفحة 8
... are rational , and that one is not so . The Interconsistency of our statements is as important as their Self - Consistency . The diligent reader may discover on different pages of a connected treatise statements which no charity can con ...
... are rational , and that one is not so . The Interconsistency of our statements is as important as their Self - Consistency . The diligent reader may discover on different pages of a connected treatise statements which no charity can con ...
الصفحة 29
... are essential to the character , and that he is not a minister who has not a long black gown , nor can he be a soldier who is not dressed in red . It would be well if all such mistakes ended in childhood . ' I can add an instance from ...
... are essential to the character , and that he is not a minister who has not a long black gown , nor can he be a soldier who is not dressed in red . It would be well if all such mistakes ended in childhood . ' I can add an instance from ...
الصفحة 36
... not be given in a negative form if a positive idea is intended . As Professor Read reminds us , a natural historian would not define a lion by saying that it was not a vegetarian . So , in the positive interests of Geometry , it would ...
... not be given in a negative form if a positive idea is intended . As Professor Read reminds us , a natural historian would not define a lion by saying that it was not a vegetarian . So , in the positive interests of Geometry , it would ...
الصفحة 40
... is the established designation of the procedure we have now to examine , is not happily chosen . We cannot appropriately speak of dividing a word , or the meaning of a word , for meanings are ' differentiated ' rather than divided . The ...
... is the established designation of the procedure we have now to examine , is not happily chosen . We cannot appropriately speak of dividing a word , or the meaning of a word , for meanings are ' differentiated ' rather than divided . The ...
الصفحة 42
... and the number and nature of the representative bodies . Thus we see that a logical division is not necessarily exhausted by a single division of a genus into its alternative species . The interest which prompts the division may require ...
... and the number and nature of the representative bodies . Thus we see that a logical division is not necessarily exhausted by a single division of a genus into its alternative species . The interest which prompts the division may require ...
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عبارات ومصطلحات مألوفة
abstract accepted affirmative Algol ambiguity antecedent application argument Aristotle assertion called Carveth Read categorical proposition causal cause Classification concept conclusion concrete connexion connotation connotation and denotation contradiction contradictory Contrapositive copula Deductive Deductive Inference defined definition differentia disjunctive proposition distinction division effect Enumerative Induction Epimenides essential exclusive expressed fact fallacy given Hence hypothesis ibid ideal Identity implied important indeterminate Inductive Inference instance interest is-not J. S. Mill judgment Laws of Thought limited logical form major premiss meaning Method Mill Mill's nature negative Novum Organum object observation particular plants point of view possible postulate precisely predicate principle purpose question rational animal reality reason reference rejected relation relevant Rule S's are P's S's are-not P's Science scientific sense singular Sorites species statement subaltern subject-term summum genus Syllogism term thinking tion triangle true truth undistributed universal valid vide word
مقاطع مشهورة
الصفحة 415 - If an instance in which the phenomenon under investigation occurs, and an instance in which it does not occur, have every circumstance in common save one, that one occurring only in the former; the circumstance in which alone the two instances differ is the effect, or the cause, or an indispensable part of the cause, of the phenomenon.
الصفحة 315 - I have steadily endeavoured to keep my mind free so as to give up any hypothesis, however much beloved (and I cannot resist forming one on every subject), as soon as facts are shown to be opposed to it.
الصفحة 391 - I had, also, during many years followed a golden rule, namely, that whenever a published fact, a new observation or thought came across me, which was opposed to my general results, to make a memorandum of it without fail and at once; for I had found by experience that such facts and thoughts were far more apt to escape from the memory than favorable ones.
الصفحة 283 - The only proof capable of being given that an object is visible, is that people actually see it; the only proof that a sound is audible, is that people hear it: and so of the other sources of our experience.
الصفحة 456 - The uniformity in the succession of events, otherwise called the law of causation, must be received not as a law of the universe, but of that portion of it only which is within the range of our means of sure observation, with a reasonable degree of extension to adjacent cases.
الصفحة 417 - Whatever phenomenon varies in any manner, whenever another phenomenon varies in some particular manner, is either a cause or an effect of that phenomenon, or is connected with it through some fact of causation.
الصفحة 395 - If two or more instances of the phenomenon under investigation have only one circumstance in common, the circumstance in which alone all the instances agree is the cause (or effect) of the given phenomenon.
الصفحة 314 - I worked on true Baconian principles, and without any theory collected facts on a wholesale scale...
الصفحة 386 - The total energy of any material system is a quantity which can neither be increased nor diminished by any action between the parts of the system, though it may be transformed into any of the forms of which energy is susceptible.
الصفحة 314 - I happened to read for amusement ' Malthus on Population,' and being well prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances favourable variations would tend to be preserved, and unfavourable ones to be destroyed. The result of this would be the formation of new species. Here then I had at last got a theory by which to work...