Proceedings of the Cambridge Philosophical Society: Mathematical and physical sciences, Volume 19

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Cambridge Philosophical Society, 1920
 

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Page 312 - And to shew that I do not take Gravity for an essential Property of Bodies, I have added one Question concerning its Cause, chusing to propose it by way of a Question, because I am not yet satisfied about it for want of Experiments.
Page 177 - President, in the chair. The following were elected Fellows of the Society : — Mr.
Page 333 - Experiments were described with a mercury voltameter, in which one elctrode consists of a sphere of mercury deposited on the end of a fine platinum wire and measured by means of a microscope. Quantities of electricity varying from a few hundred electrostatic units to about one coulomb may be measured by it. The almost instantaneous change of size of the drop when a capacity of one tenth of a microfarad, charged to 1 volt, is discharged through the instrument is easily observed.
Page 113 - PRESIDENT, IN THE CHAIR. The following were elected Officers for the ensuing year: President: Mr GU Yule.
Page 81 - On Convergence Factors in Double Series and the Double Fourier's Series', Trans.
Page 139 - Proc. London Math. Soc., ser. 2, vol. 6, 1907, pp. 29-51. Young, in his paper already quoted, by means of the Heine-Borel Theorem*; and it plainly includes, as a particular case, Weierstrass's theorem referred to above. 5. It seems to me that the definition given by Stokes is not any one of A 1 , A 2, A 3 ; and that, if we are to understand him rightly, we must consider another parallel group of definitions. These definitions differ from those given above...
Page 14 - If p is an elementary proposition, ~ p is an elementary proposition. Dem. Axiom 2 gives us 'pAp' elementary when p is elementary; is ~ p, by Definition of Negation. Hence the theorem. This is a proof of Mr Russell's primitive proposition *1.7 given above. THEOREM 2 If p and q are elementary propositions, ' pvq ' is an elementary proposition. Dem. By Theorem 1, if p and q are elementary so also are ~j9 and ~ q.
Page 143 - ... than a given quantity e, which may be as small as we please, n increases beyond all limit as h decreases beyond all limit. 'DEMONSTRATION. If the convergency do not become infinitely slow it will be possible to find a number n, so great that for the value of h we begin with and for all inferior values greater than zero the sum of the neglected terms shall be numerically less than e....
Page 141 - Bl: a series quasi-uniformly convergent at every point of an interval (or in the neighbourhood of every such point) is not necessarily quasiuniformly convergent throughout the interval. We can apply the Heine-Borel Theorem in the manner indicated in the first sentences of...
Page 143 - ... numerically less than a given quantity e which may be as small as we please, n increases beyond all limit as h decreases beyond all limit.

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