The Principles of scienceMacmillan and Company, 1874 - 480 oldal |
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1 - 5 találat összesen 77 találatból.
32. oldal
... planet , we increase its intension and decrease its extension by prefixing the adjective exterior ; and if we further add nearest to the earth , there remains but one planet Mars , to which the name can then be applied . Singular terms ...
... planet , we increase its intension and decrease its extension by prefixing the adjective exterior ; and if we further add nearest to the earth , there remains but one planet Mars , to which the name can then be applied . Singular terms ...
45. oldal
... planets . The ringed planet = The planet having seven satel- lites . The Queen of England = The Queen of India . The number two = The even prime number . Honesty The best policy . C In mathematical and scientific theories we often meet ...
... planets . The ringed planet = The planet having seven satel- lites . The Queen of England = The Queen of India . The number two = The even prime number . Honesty The best policy . C In mathematical and scientific theories we often meet ...
67. oldal
... planet No planet has retrograde motion , Neptune has not retrograde motion . ( 1 ) ( 2 ) ( 3 ) If we put A for Neptune , B for planet , and C for having retrograde motion , ' then by the corresponding negative term c , we denote ' not ...
... planet No planet has retrograde motion , Neptune has not retrograde motion . ( 1 ) ( 2 ) ( 3 ) If we put A for Neptune , B for planet , and C for having retrograde motion , ' then by the corresponding negative term c , we denote ' not ...
77. oldal
... planets are subject to gravity , Fixed stars are not planets , ( 1 ) ( 2 ) we might inadvertently but fallaciously infer that , ' Fixed DEDUCTIVE REASONING . 77 PAGE.
... planets are subject to gravity , Fixed stars are not planets , ( 1 ) ( 2 ) we might inadvertently but fallaciously infer that , ' Fixed DEDUCTIVE REASONING . 77 PAGE.
78. oldal
... planet B = fixed star C = subject to gravity ; then we have the propositions A = AC B = Ba . ( 1 ) ( 2 ) The reader will try in vain to produce from these premises by legitimate substitution any relation between B and C ; he could not ...
... planet B = fixed star C = subject to gravity ; then we have the propositions A = AC B = Ba . ( 1 ) ( 2 ) The reader will try in vain to produce from these premises by legitimate substitution any relation between B and C ; he could not ...
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Gyakori szavak és kifejezések
ABCD Abecedarium amount analogy apparent arise assert astronomers body calculation cause character circumstances classification colour combinations comets crystals deductive deductive reasoning degree density detect determined diamagnetic discovered discovery disjunctive proposition earth effect electricity equal equivalent error exactly exist experiment expression fact force Francis Bacon gravity heat hypothesis identity induction inference instance inverse investigation J. S. Mill knowledge Law of Error Laws of Identity laws of nature Laws of Thought less light liquid logical logical conditions magnetic mammæ manner mathematical matter mean measure metal method mode motion negative Newton objects observed pendulum phenomena phenomenon Philosophical physical planets possess possible premises principle properties proposition prove qualities quantity reasoning refraction regards relation scientific scientific method similar simple space specific gravity stars substances substitution supposed syllogism symbols temperature things tion triangle true truth velocity vibrations
Népszerű szakaszok
359. oldal - 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.
233. oldal - I have long held an opinion, almost amounting to conviction, in common I believe with many other lovers of natural knowledge, that the various forms under which the forces of matter are made manifest have one common origin; or, in other words, are so directly related and mutually dependent, that they are convertible, as it were, one into another, and possess equivalents of power in their action.
145. oldal - That it is the glory of God to conceal a thing, but the glory of a king to search it out.
465. oldal - Scientific method leads us to the inevitable conception of an infinite series of successive orders of infinitely small quantities. If so, there is nothing impossible in the existence of a myriad universes within the compass of a needle's point, each with its stellar systems, and its suns and planets, in number and variety unlimited. Science does nothing to reduce the number of strange things that we may believe. When fairly pursued, it makes large drafts upon our powers of comprehension and belief...
63. oldal - If one part of any system connected either by material ties, or by the mutual attractions of its members, be continually maintained by any cause, whether inherent in the constitution of the system or external to it, in a state of regular periodic motion, that motion will be propagated throughout the whole system, and will give rise, in every member of it, and in every part of each member, to periodic movements executed in eijual periods with that to which they owe their origin, though not necessarily...
161. oldal - Malus, while looking through a prism of calcareous spar at the light of the setting sun reflected from the windows of the Luxembourg palace in...
244. oldal - He that will not eat till he has demonstration that it will nourish him; he that will not stir till he infallibly knows the business he goes about will succeed, will have little else to do but to sit still and perish.
84. oldal - A peer is either a duke, or a marquis, or an earl, or a viscount, or a baron.' If expressed in Professor Boole's symbols, it would be implied that a peer cannot be at once a duke and marquis, or marquis and earl. Yet many peers do possess two or more titles, and the Prince of Wales is Duke of Cornwall, Earl of Dublin, and Baron Renfrew.
272. oldal - not one of the inductive truths which men have established, or think they have established, is really safe from exception or reversal. . . . Euler expresses no more than the truth when he says that it would be impossible to fix on any one thing really existing of which we could have so perfect a knowledge as to put us beyond the reach of mistake.
6. oldal - Whatever is, is." (2) The law of contradiction: "Nothing can both be and not be." (3) The law of excluded middle: "Everything must either be or not be.