The Principles of Science: A Treatise on Logic and Scientific Method |
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Page xx
... regards their con- tents and importance . The most learned logicians , such as Hamilton and Ueberweg , ignore Leibnitz ' principle of substitution . In the Appendix to the fourth volume of Hamilton's Lectures on Metaphysics and Logic ...
... regards their con- tents and importance . The most learned logicians , such as Hamilton and Ueberweg , ignore Leibnitz ' principle of substitution . In the Appendix to the fourth volume of Hamilton's Lectures on Metaphysics and Logic ...
Page 7
... regards the mind as being in a state of constant education , each act of false reasoning or miscalculation leading to results which are likely to prevent similar mistakes from being again committed . I am quite inclined to accept such ...
... regards the mind as being in a state of constant education , each act of false reasoning or miscalculation leading to results which are likely to prevent similar mistakes from being again committed . I am quite inclined to accept such ...
Page 10
... regards its length , is true of its equal . To every other simple phenomenon in nature the same principle of substitution is applicable . We may compare weights , densities , degrees of hardness , and degrees of all other qualities , in ...
... regards its length , is true of its equal . To every other simple phenomenon in nature the same principle of substitution is applicable . We may compare weights , densities , degrees of hardness , and degrees of all other qualities , in ...
Page 14
... regard to any one or more of the assigned qualities . If A denote " transparent object , " Not A will denote " not transparent object . " Brevity and facility of expression are of no slight importance in a system of notation , and it ...
... regard to any one or more of the assigned qualities . If A denote " transparent object , " Not A will denote " not transparent object . " Brevity and facility of expression are of no slight importance in a system of notation , and it ...
Page 29
... regards the properties of space they are many.1 We need not further pursue this question , which involves the distinction between unity and plurality , until we consider the principles of number in a subsequent chapter . Collective ...
... regards the properties of space they are many.1 We need not further pursue this question , which involves the distinction between unity and plurality , until we consider the principles of number in a subsequent chapter . Collective ...
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Common terms and phrases
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
Popular passages
Page 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.
Page 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.
Page 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.
Page 304 - Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external...
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