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  3. Show e really exists in one page

    Show e really exists in one page

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    7
  4. Linear algebra advanced basic: Zorn's lemma, exchange lemma, dimension

    Linear algebra advanced basic: Zorn's lemma, exchange lemma, dimension

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    57
  5. Gaussian integer and Fermat theorem

    Gaussian integer and Fermat theorem

    34
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    8
  6. Ring theory lecture - definition

    Ring theory lecture - definition

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    11
  7. Counting formula in Group theory

    Counting formula in Group theory

    35
    7
    15
  9. Great Animated History of Human Evolution on Earth from Single Cell Organisms

    Great Animated History of Human Evolution on Earth from Single Cell Organisms

    120
  10. Permutation group (Symmetric group)

    Permutation group (Symmetric group)

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    2
  11. Construction in categories: product/coproduct, equalizer/coequalizer, Pushout/pullbacks

    Construction in categories: product/coproduct, equalizer/coequalizer, Pushout/pullbacks

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    14
  12. More easy mathematical induction exercise

    More easy mathematical induction exercise

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  15. Can you prove this: square root of 2 of 2= square root of 2 to the power square root of 2

    Can you prove this: square root of 2 of 2= square root of 2 to the power square root of 2

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    6
  16. 黎曼猜想 What is Riemann hypothesis (14): Higher L function

    黎曼猜想 What is Riemann hypothesis (14): Higher L function

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    10
  17. Correspondence theorem in Group theory and third isomorphism theorem

    Correspondence theorem in Group theory and third isomorphism theorem

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    30
  18. Experiments With Hope - Episode 11: Marketing Psychology

    Experiments With Hope - Episode 11: Marketing Psychology

    32
  19. Goldbach's theorem: Fermat numbers are coprime

    Goldbach's theorem: Fermat numbers are coprime

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    12
  20. Volume of sphere, Cone, Pyramid

    Volume of sphere, Cone, Pyramid

    8
    1
    15
  21. How to put 20 equilateral triangles on sphere

    How to put 20 equilateral triangles on sphere

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    17
  22. Cardano’s formula: Cubic equation

    Cardano’s formula: Cubic equation

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    2
  23. Trigonometry: Product of sin(kpi/n) from k=1 to n-1

    Trigonometry: Product of sin(kpi/n) from k=1 to n-1

    27
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    7
  24. Field theory (Abstract Algebra)

    Field theory (Abstract Algebra)

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    60