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Vijay posted an Question
September 27, 2020 • 14:58 pm 30 points
  • IIT JAM
  • Mathematics (MA)

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Rational number ke nbd bhi uncountable Q and Q^c honge usmee cd(s)=R hona chaeye par aisa nahi hai why?

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    Deepak singh 1 best-answer

    take any point either rational or irrational belongs to R and make a €- neighborhood (€>0) around that point . Then cardinality of that interval will be uncountable and will be isomorphic to R. Also Implies that interval will contain uncountable irrational and countable rational point.. it may clear your doubt..

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