Real numbers as Cauchy sequences don't work! | Real numbers and limits Math Foundations 114

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  • Опубліковано 19 гру 2024

КОМЕНТАРІ • 15

  • @mahiainti678
    @mahiainti678 7 місяців тому +1

    Rewatching some old stuff and this is very fun lecture to watch! The humor is very accurate and on point

  • @fallingmasonry
    @fallingmasonry 8 років тому +10

    I just stumbled across this delightful quote from Thomas Hobbes:
    "The use and end of reason is not the finding of the sum and truth of
    one or a few consequences remote from the first definitions and settled
    significations of names, but to begin at these, and proceed from one
    consequence to another. For there can be no certainty of the last
    conclusion without a certainty of all those affirmations and negations
    on which it was grounded and inferred...
    He that takes up conclusions on the trust of authors and doth not fetch
    them from the first items in every reckoning, which are the
    significations of names settled by definitions, loses his labour, and
    does not know anything, but only believeth."
    www.bartleby.com/34/5/5.html

    • @njwildberger
      @njwildberger  8 років тому +1

      Thanks for a lovely quote!

    • @jessewolf6806
      @jessewolf6806 2 роки тому

      Well, the first 10 minutes at least are completely unconvincing.

  • @LeonKayombo-yk4tc
    @LeonKayombo-yk4tc 3 місяці тому +1

    Nice ! I do 😅gree

  • @dibeos
    @dibeos 2 роки тому +1

    awesome class! thank you so much for that!

  • @bananamanjunior7575
    @bananamanjunior7575 2 роки тому

    This video should have more views

  • @adsoyad2607
    @adsoyad2607 2 роки тому

    these lectures are amazing but they also slowly make me depressed. you have convinced me that infinite sets don't exist

    • @njwildberger
      @njwildberger  2 роки тому +1

      It should be a happy feeling: that we don't have to repeat this nonsense anymore!

    • @elcapitan6126
      @elcapitan6126 Рік тому

      if we think of unbounded processes that produce a value at each iteration, that's the nearest notion to "infinity" that makes practical sense (computer science and constructivist mathematics would agree with that). but then computing equality between processes in general is impossible so there's a question of practicality of reasoning about such processes mathematically at least in general.

  • @fcpronos5784
    @fcpronos5784 8 років тому

    Good !