(0,1) is uncountable | Proof using definition of Countable Set | Algebra

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  • čas přidán 2. 08. 2018
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Komentáře • 69

  • @harshdeep3421
    @harshdeep3421 Před 4 lety +4

    Very good explanation sir... Thanks 😊😊

  • @azhar07464
    @azhar07464 Před 4 lety +2

    Very good explaination sir.thanks

  • @sujanbhakat1199
    @sujanbhakat1199 Před 4 lety +2

    Very nice explanation Sir.

  • @user-ws7td5pu8r
    @user-ws7td5pu8r Před 10 měsíci +2

    your explanation cleared the concept properly! thank you so much!!!

    • @AllyLearn
      @AllyLearn  Před 10 měsíci

      To learn Higher Mathematics from over 900 video lectures, download AllyLearn android app. The benefits of app are
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  • @thenewdimension9832
    @thenewdimension9832 Před 3 lety +2

    Great sir ,love u 💕💕

  • @farhakhan4052
    @farhakhan4052 Před 5 lety

    Thank u so much sir... great video🤩🤩👌👌👌

  • @aliayaz4364
    @aliayaz4364 Před 4 lety +1

    Excellent!

  • @simransolanki8049
    @simransolanki8049 Před 4 lety +1

    Nice explaination....... Helpful for me

  • @sanjilak
    @sanjilak Před 5 lety +1

    Well explained! Sir

  • @dineshmeghvanshi7884
    @dineshmeghvanshi7884 Před 4 lety +1

    Sir very good 👍 explanation

  • @milankumari1576
    @milankumari1576 Před 5 lety

    Thank you so much sir

  • @supriyasingh4441
    @supriyasingh4441 Před 3 lety +2

    Please sir, Cartesian products of countable sets is also countable. Ka proof karwa dijiye

  • @akshatbhutra4592
    @akshatbhutra4592 Před 5 lety +2

    [0,1] is uncountably infinite nice concept

  • @mayankyadav1950
    @mayankyadav1950 Před 4 lety

    too good explained

  • @janmejay_sharma_VishwakarmaJi

    Hello sir ,was u ever student of du??

  • @sherali8325
    @sherali8325 Před 3 lety

    Sir g which element not exist in list??

  • @varuu.rajpoot
    @varuu.rajpoot Před 4 lety +3

    Best explanation 👍

    • @AllyLearn
      @AllyLearn  Před 4 lety +1

      Thanks for your appreciation.

  • @navvideos153
    @navvideos153 Před 5 lety

    sir agr general result lyi kive krna oh v proove krdo tht every opn interval is uncountable

  • @msaleem6286
    @msaleem6286 Před 4 lety

    Sir tusi great ho

  • @deekshaverma1591
    @deekshaverma1591 Před rokem +1

    Thank you sir

    • @AllyLearn
      @AllyLearn  Před rokem

      अगले पांच मिनट आपके Maths पढ़ने का तरीका बदल सकते हैl
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  • @avadheshkumar1488
    @avadheshkumar1488 Před 2 lety +1

    Thanks

    • @AllyLearn
      @AllyLearn  Před 2 lety

      Your welcome 😊
      To learn Higher Mathematics from over 900 video lectures, download AllyLearn android app. The benefits of app are
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  • @yadwindersinghjassi5231

    Sir how can we write decimal representation of 1/100 without using 0 and 9 digits

  • @dineshmeghvanshi7884
    @dineshmeghvanshi7884 Před 4 lety

    Sir Cantor's theorem ka proof per ek video banao please

  • @RohitYadav-dj6zu
    @RohitYadav-dj6zu Před 2 lety +1

    Super explanation 👏🎉🎉🙏🏻🙏🏻🙏🏻sir

    • @AllyLearn
      @AllyLearn  Před 2 lety

      अगले पांच मिनट आपके Maths पढ़ने का तरीका बदल सकते हैl
      Download the Allylearn app now and start learning from 900+ video lectures and Notes
      No registration required for a try
      पहले इस्तेमाल करें फिर विश्वाश करें l
      Link - play.google.com/store/apps/details?id=com.allylearn.app
      Regards,
      Team AllyLearn

  • @farhakhan4052
    @farhakhan4052 Před 5 lety +1

    Sir mujhe enumerable or denumerable smjh nhi aata ..bhut confuse hu..dono same h kya?..sir plzz reply me

    • @AllyLearn
      @AllyLearn  Před 5 lety

      www.allylearn.com/RequestedVid.html?id=207

  • @SherlockHolmes-lc7jo
    @SherlockHolmes-lc7jo Před 3 lety +4

    Very well explained,thank you!!

    • @AllyLearn
      @AllyLearn  Před 3 lety

      For more videos please download AllyLearn App. The link of the app is here play.google.com/store/apps/details?id=com.allylearn.app
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      Team AllyLearn

  • @priyankarajputthakur2475
    @priyankarajputthakur2475 Před 2 lety +1

    Nice explain

    • @AllyLearn
      @AllyLearn  Před 2 lety

      To access 800+ video lectures on Higher Mathematics, please download AllyLearn android app.
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  • @pratidinawaj3635
    @pratidinawaj3635 Před 5 lety +1

    I couldn't understand this video totally. Dear Sir. I couldn't understand the meaning of suffix of a 11, a 12, and so on.

  • @zubisiddiqui584
    @zubisiddiqui584 Před 4 lety

    Sir value of b1 only taken from 1 to 8 not take 0 and 9 why?

    • @AllyLearn
      @AllyLearn  Před 4 lety

      Here, we are taking bi different from aii, you can take any value of bi instead of 2 but not equal to 1.

  • @jegadeesangovindarajan972

    sir can you say about the writing tool..... it's very nice as like as your explanation

    • @AllyLearn
      @AllyLearn  Před 2 lety

      Please follow this video on how we create our lectures.
      czcams.com/video/2ou4Yh2HczM/video.html

  • @karthikmanasali4644
    @karthikmanasali4644 Před 6 lety

    Sir for closed interval how to prove

    • @AllyLearn
      @AllyLearn  Před 6 lety +4

      We know that every subset of a countable set is countable.
      Let if possible [0,1] is countable it's subset i.e. (0,1) is also countable. Now show above proof. So we arrive at a contradiction it means our supposition is wrong.
      We hope it clears your doubt. If you still have any doubt feel free to contact us.
      Regards
      Team AllyLearn

  • @raghavendraraghu1864
    @raghavendraraghu1864 Před 4 lety +2

    Sir How to prove [0 , 1] uncountable

    • @DeepakSharma-pk7ts
      @DeepakSharma-pk7ts Před 3 lety

      Paper me yahi question aata ha jo aapne likha ha par sir ne dusra karba diya

  • @banavathugopalnaik2594

    sir i have doubt at b=0.b1b2... and how bi is different from aii plz explain in english sir

    • @AllyLearn
      @AllyLearn  Před 4 lety

      This is by the definition of bi see 3:35 onwards.

  • @mdredyanahmed3953
    @mdredyanahmed3953 Před 4 lety

    Is uncountable =non enumerable?

  • @sikandermehra8459
    @sikandermehra8459 Před rokem

    Sir (a,b) ko kaise proof krege ki yeh uncountable hai is

    • @AllyLearn
      @AllyLearn  Před rokem

      All lectures created by team AllyLearn are available on AllyLearn android app including your question.
      So please download the app now.
      App link - play.google.com/store/apps/details?id=com.allylearn.app

  • @gyanaranjankandi9075
    @gyanaranjankandi9075 Před 2 lety +1

    Why (0,1) is not countable finite set

    • @MikeRosoftJH
      @MikeRosoftJH Před 2 lety

      Because given any function from natural numbers to an interval of reals, there is some real number in the interval which the function does not cover. (And that can be proven - for example - using the diagonal proof presented in this video.)

  • @adkirubakaran9000
    @adkirubakaran9000 Před 5 lety +2

    Sir, will you explain this vedio in english

  • @ArmanTVGB
    @ArmanTVGB Před 5 lety

    Show that [0,1] is not countable?
    Sir ye kaise show karainge

    • @AllyLearn
      @AllyLearn  Před 5 lety +2

      We know that every subset of a countable set is countable.
      Let if possible [0,1] is countable it's subset i.e. (0,1) is also countable. Now show above proof. So we arrive at a contradiction it means our supposition is wrong.
      We hope it clears your doubt. If you still have any doubt feel free to contact us.
      Regards
      Team AllyLearn

    • @ArmanTVGB
      @ArmanTVGB Před 5 lety

      @@AllyLearn
      How can contact

    • @SkiferYT
      @SkiferYT Před 5 lety

      yeh merko bhi doubt h yaar. anyone got answer please tell me too

    • @AllyLearn
      @AllyLearn  Před 5 lety +1

      @@SkiferYT
      We know that every subset of a countable set is countable.
      Let if possible [0,1] is countable it's subset i.e. (0,1) is also countable. Now show above proof. So we arrive at a contradiction it means our supposition is wrong.
      We hope it clears your doubt. If you still have any doubt feel free to contact us.
      Regards
      Team AllyLearn

    • @ArmanTVGB
      @ArmanTVGB Před 5 lety +1

      OK I solved this question very well thanks for guiding.

  • @unnesflash4917
    @unnesflash4917 Před 5 lety +2

    is this english or indian or what ? , stick to one language please

    • @AllyLearn
      @AllyLearn  Před 5 lety

      Thanks for watching our videos. We hope that your exam was good. It would be great if you could spare a few minutes and write a review of your course (GE-3 Differential Equation) and describe how useful did you find our videos in
      your examination. This will help us in improving for upcoming courses. The link for rating and review is given below - www.allylearn.com/Public/Rate_and_Review.aspx?coursename=GE3%20Differential%20Equations
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  • @maxpercer7119
    @maxpercer7119 Před 4 lety +1

    English?

    • @AllyLearn
      @AllyLearn  Před 4 lety

      We understand your confusion regarding the language of the lecture.
      Please note that these lectures are primarily targeted at Indian audience who uses a mixture of English and Hindi for studying Mathematics.
      You may have a look at our Partial Differential Equations (PDE) and later videos of Theory of Real Functions. They are primarily in English.
      Regards,
      Team AllyLearn

  • @saibabakothakapu9563
    @saibabakothakapu9563 Před 3 lety

    So in the last we are assuming that decimal representation is unique for any number from (0,1)
    But 0.5=0.49999999...........
    So how to justify???
    So what I'm asking is finally we got 0.b1b2.... Such that we didn't get any corresponding a1. But 0.b1b2.. May equivalent to some 0.ak1ak2....???

    • @MikeRosoftJH
      @MikeRosoftJH Před 2 lety

      That's just a technical detail. If you are careful in the construction of the diagonal number, you can also take care of the alternate decimal expansions of the numbers in the sequence. One way is by simply not using the digits 0 or 9 (change every digit n to n+1, except digit 9 which is changed to 8). Another - my favorite - way is to increase the digit by 5, wrapping around zero if necessary; that ensures not just that the diagonal number differs from every number in the sequence, but also by how much.

  • @aayushgairola5983
    @aayushgairola5983 Před 2 lety

    Writing to kr lo sir bdiya pta hi nhi chl ra,