The Principles of Science: A Treatise on Logic and Scientific MethodMacmillan and Company, 1877 - 786 sider |
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Side xix
... instance , in the course of a careful review , says of the principle of substitution , “ Surely it is a great omission not to discuss whence we get this great principle itself ; whether it is a pure law of the mind , or only an ...
... instance , in the course of a careful review , says of the principle of substitution , “ Surely it is a great omission not to discuss whence we get this great principle itself ; whether it is a pure law of the mind , or only an ...
Side 9
... instance of a phenomenon whatever we have previously known of its like , analogue , equivalent or equal . Sameness or identity presents itself in all degrees , and is known under various names ; but the great rule of inference embraces ...
... instance of a phenomenon whatever we have previously known of its like , analogue , equivalent or equal . Sameness or identity presents itself in all degrees , and is known under various names ; but the great rule of inference embraces ...
Side 11
... instance of representative measurement , depending im- mediately upon the principle of inference , could not be found.1 Throughout the various logical processes which we are about to consider - Deduction , Induction , Generalisation ...
... instance of representative measurement , depending im- mediately upon the principle of inference , could not be found.1 Throughout the various logical processes which we are about to consider - Deduction , Induction , Generalisation ...
Side 19
... instance , 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 ...
... instance , 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 ...
Side 25
... instance in many fragments of rock ; mentally joining these together , we create the class hard object , which will include , not only the actual objects examined , but all others which may happen to agree with them , as they agree with ...
... instance in many fragments of rock ; mentally joining these together , we create the class hard object , which will include , not only the actual objects examined , but all others which may happen to agree with them , as they agree with ...
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Andre utgaver - Vis alle
The Principles of Science: A Treatise on Logic and Scientific Method William Stanley Jevons Uten tilgangsbegrensning - 1883 |
The Principles of Science: A Treatise on Logic and Scientific Method, Volum 1 William Stanley Jevons Uten tilgangsbegrensning - 1879 |
The Principles of Science: A Treatise on Logic and Scientific Method William Stanley Jevons Uten tilgangsbegrensning - 1877 |
Vanlige uttrykk og setninger
ABCD analogy apparent approximate arises ascertain assert body calculation cause character classification colour combinations consists Contrapositive crystals deductive deductive reasoning density detect discovered discovery disjunctive proposition earth effect electricity equal equation equivalent error exactly exist experiment expression fact force give gravity heat hypothesis identity induction inference infinite instance inverse inverse logical investigation J. S. Mill knowledge Laws of Identity laws of nature Laws of Thought Leibnitz light Logical Alphabet logical conditions logicians magnetic manner mathematical matter mean measure metal method mind mode motion negative Newton objects observation pendulum phenomena Philosophical planets possess possible premises principle principle of substitution probability problem properties proposition qualities quantity question reasoning refraction regards relation scientific scientific method similar simple stars substances substitution supposed syllogism symbols temperature theory things tion triangle true truth velocity
Populære avsnitt
Side 458 - 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.
Side 593 - 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.
Side 484 - 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.
Side 308 - Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external...
Side 592 - ... says the same scientist; and further quotes the noble words of Faraday —"occasionally, and frequently the exercise of the judgment ought to end in absolute reservation. It may be very distasteful and a great fatigue to suspend a conclusion, but as we are not infallible, so we ought to be cautious.
Side 758 - ... recorded, vows unredeemed, promises unfulfilled, perpetuating in the united movements of each particle, the testimony of man's changeful will.
Side 308 - Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
Side xxxi - I have very imperfectly succeeded in expressing my strong conviction that before a rigorous logical scrutiny the Eeign of Law will prove to be an unverified hypothesis, the Uniformity of Nature an ambiguous expression, the certainty of our scientific inferences to a great extent a delusion.
Side 126 - That it is the glory of God to conceal a thing, but the glory of a king to search it out.
Side 621 - Each Seed includes a Plant: that Plant, again, Has other Seeds, which other Plants contain: Those other Plants have all their Seeds; and Those, More Plants, again, successively inclose. Thus, ev'ry single Berry that we find, Has, really, in itself whole Forests of its Kind, Empire and Wealth one Acorn may dispense, By Fleets to sail a thousand Ages hence: Each Myrtle-Seed includes a thousand Groves, Where future Bards may warble forth their Loves.