The Principles of Science: A Treatise on Logic and Scientific MethodMacmillan and Company, 1887 - 786 páginas |
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Página 9
... exactly represents the texture , appearance , and general nature of one portion , and according as this sample agrees or not with the other , so will the two portions of commodity agree or differ . Whatever is true . as regards the ...
... exactly represents the texture , appearance , and general nature of one portion , and according as this sample agrees or not with the other , so will the two portions of commodity agree or differ . Whatever is true . as regards the ...
Página 19
... exactly similar bricks and other materials be used to build two houses , and they be simi- larly placed in each house , the two houses must be similar . There are millions of cells in a human body , but if each cell of one person were ...
... exactly similar bricks and other materials be used to build two houses , and they be simi- larly placed in each house , the two houses must be similar . There are millions of cells in a human body , but if each cell of one person were ...
Página 31
... exactly to a phrase . There is no single word by which we could express the notion " of specific gravity 10'5 " but logically we may consider these words as forming an adjective ; and denoting this by S and metal by P , we may say that ...
... exactly to a phrase . There is no single word by which we could express the notion " of specific gravity 10'5 " but logically we may consider these words as forming an adjective ; and denoting this by S and metal by P , we may say that ...
Página 46
... exactly expresses this reciprocal character of identity in saying , " There are not two studies , one of philosophy and the other of religion ; true philosophy is true religion , and true religion is true philosophy . " = A ...
... exactly expresses this reciprocal character of identity in saying , " There are not two studies , one of philosophy and the other of religion ; true philosophy is true religion , and true religion is true philosophy . " = A ...
Página 47
... exactly the same identity differently written . All need for rules of conversion disappears , and there will be no single proposition in the system which may not be written with either end foremost . Thus A : AB is the same as AB = A ...
... exactly the same identity differently written . All need for rules of conversion disappears , and there will be no single proposition in the system which may not be written with either end foremost . Thus A : AB is the same as AB = A ...
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Otras ediciones - Ver todas
Términos y frases comunes
abC abc ABcd AbCd analogy apparent arithmetic assert body calculation cause character classification colour Contrapositive crystals deductive deductive reasoning density detect discovered discovery disjunctive proposition earth effect electricity equal equation equivalent error exactly exist experiment expression fact fcap force give gravity heat hypothesis identity induction inference infinite instance inverse inverse logical investigation J. S. Mill James Bernoulli knowledge Laws of Identity laws of nature Laws of Thought letters light Logical Alphabet logical conditions magnetic mammæ manner mathematical matter mean measure metal method mode motion negative Newton number of combinations objects observation obtain pendulum phenomena Philosophical planets possible premises principle probability problem Professor properties proposition qualities quantity reasoning refraction regards relation scientific simple specific gravity stars substances substitution supposed syllogism symbols temperature theory things tion triangle true truth velocity
Pasajes populares
Página 454 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
Página 589 - The philosopher should be a man willing to listen to every suggestion, but determined to judge for himself. He should not be biased by appearances; have no favorite hypothesis ; be of no school ; and in doctrine have no master. He should not be a respecter of persons, but of things. Truth should be his primary object. If to these qualities be added industry, he may indeed hope to walk within the veil of the temple of nature.
Página 480 - 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.
Página 304 - Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external...
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