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UBA - CienciaS • Ver Tema - [Resuelto], P(3-2C 2009)-4
UBACS Q&A Foro WikiCS
Fecha actual 13 May 2024, 12:37

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 Asunto: [Resuelto], P(3-2C 2009)-4
NotaPublicado: 10 Oct 2009, 18:07 
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Registrado: 25 Sep 2008, 16:14
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Dice : Sea . Probar que si es no numerable, entonces existe tal que es punto de condensacion de

Hasta ahora se me ocurrio esta parte:


gracias


Última edición por akd mia el 10 Oct 2009, 18:50, editado 1 vez en total

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 Asunto: Re: [No Resuelto], P(3-2C 2009)-4
NotaPublicado: 10 Oct 2009, 18:43 
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Nota: esto de cubrimientos por abiertos es Lindelof. Se puede probar para a ''mano'', y es lo que se hace en los primeros ejercicios de la práctica 4 o 3(no recuerdo).
Si no se entiende algo avisá. Saludos



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I offer her that kernel of myself that I have saved, somehow; the central heart that deals not in words, traffics not with dreams and is untouched by time, by joy, by adversities
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 Asunto: Re: [No Resuelto], P(3-2C 2009)-4
NotaPublicado: 10 Oct 2009, 18:50 
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Se entendio todo
Gracias Marce


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 Asunto: Re: [Resuelto], P(3-2C 2009)-4
NotaPublicado: 04 Dic 2014, 12:37 
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Registrado: 30 Nov 2014, 17:19
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Hola! Tengan en cuenta que en la práctica de cardinalidad todavía "no sabíamos" lindelof, ni separabilidad en general. ¿Se les ocurre alguna manera de resolver el ejercicio sin usar algo tan fuerte como que R es separable? ¡Saludos, gracias!


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 Asunto: Re: [Resuelto], P(3-2C 2009)-4
NotaPublicado: 04 Dic 2014, 12:58 
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