Performing an indexed union and intersection

Поделиться
HTML-код
  • Опубликовано: 5 ноя 2024

Комментарии • 22

  • @kevomacartney
    @kevomacartney 6 лет назад +21

    This was really well explained. I don't appreciate how these books and professors use such over complicated words and explanations for something that can be this simply broken down and explained like a normal human.

    • @joshuahelston5379
      @joshuahelston5379  6 лет назад

      Kelvin Mac glad it was reasonable! Let me know anything I can do to help!

  • @sebastianpazr4451
    @sebastianpazr4451 5 лет назад +9

    This is the only video I found that is so well explained. You've helped me a lot, thank you 3000

  • @Cemsicles
    @Cemsicles 7 лет назад +13

    Jesus christ, thank you! I am not sure how people think one can understand a simple concept such as this when they try to explain it with maximum amount of weird characters in their examples! I watched 15 videos and read 20 articles before I watched this to understand it.

    • @joshuahelston5379
      @joshuahelston5379  7 лет назад

      cem sicles I am glad it helped!

    • @Dm5messerly
      @Dm5messerly 4 года назад

      Dude.. same here man. This is the only example I’ve watched or read where it finally clicked for me. Thanks a billion

  • @deleondrake
    @deleondrake 6 лет назад

    About to take a test and forgot this would be in it, all other videos on RUclips didn't show it like you did so thank you so much!

  • @amenmoipushi8821
    @amenmoipushi8821 4 года назад

    Thank You for such a simple explanation

  • @hsbtm3655
    @hsbtm3655 2 года назад

    love the intro song choice

  • @suhailawm
    @suhailawm 4 года назад

    amazing. tnx alooooooot sir. now ive got clear this

  • @mohammedalrajeh5139
    @mohammedalrajeh5139 5 лет назад +3

    despite the fact that you are recording in the kitchen, it is a great video KEEP UP!!

  • @ishikabangari0202
    @ishikabangari0202 4 года назад

    If for the second case we choose A_i to be defined by the open interval (-i,i) then what will be the union and intersection over A_i if i=0,1,2,... ? I am wondering this because if we choose to start i at 0, then would (0,0) just be the empty set?

    • @xinpingdonohoe3978
      @xinpingdonohoe3978 3 года назад

      I think the union would be (-∞,∞) and the intersection would be {0}, because 0 would still be included in all of them.

  • @emmalalax
    @emmalalax 4 года назад

    ur the best

  • @marcschmidtpujol550
    @marcschmidtpujol550 2 года назад

    Thanks!!!

  • @lolmomz
    @lolmomz 5 лет назад

    Thanks man!

  • @amydash796
    @amydash796 Год назад

    KING FRFRFRFR

  • @duckymomo7935
    @duckymomo7935 7 лет назад +1

    Should the indexed intersection be infinity or n? Or it doesn't matter: allow n =inf?

    • @joshuahelston5379
      @joshuahelston5379  7 лет назад

      Thank you for your comment! Very careful eye!
      I cannot hear the video currently, and therefore cannot hear what I am saying, but from memory I believe I intended to do an infinite intersection so the upper bound should have been \infty.
      However, as you note, it actually does not matter in the sense that if we let n be any integer greater than or equal to 1 (or even infinity) that intersection will still come down to be the smallest nested interval which is [-1,1]!
      I believe they are eliminating annotations so I will have to research the best way to put in a correction after listening again to the audio. Thank you so much for your comment and careful viewing!

  • @comfycozyarewe388
    @comfycozyarewe388 5 лет назад

    ♥️♥️♥️❤️❤️❤️❤️