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  2. Homomorphism of ring and ideal, quotient ring

    Homomorphism of ring and ideal, quotient ring

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  3. Polynomial ring over rationals

    Polynomial ring over rationals

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  6. Polynomial over a commutative ring

    Polynomial over a commutative ring

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    7
  9. Show e really exists in one page

    Show e really exists in one page

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    7
  10. Ring theory lecture - definition

    Ring theory lecture - definition

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  11. Counting formula in Group theory

    Counting formula in Group theory

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

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

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    4
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  14. Correspondence theorem in Group theory and third isomorphism theorem

    Correspondence theorem in Group theory and third isomorphism theorem

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  15. How to put 20 equilateral triangles on sphere

    How to put 20 equilateral triangles on sphere

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  16. CNN: Shoplifting & Organized Theft Happen In Dem Cities Because They're Not Treating It As A Crime

    CNN: Shoplifting & Organized Theft Happen In Dem Cities Because They're Not Treating It As A Crime

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  17. Integral of 1/(x^3-1) from integral of 1/(x^3+1)

    Integral of 1/(x^3-1) from integral of 1/(x^3+1)

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  18. a_{n+2}=5a_{n+1}-6a_{n} Mathematical induction

    a_{n+2}=5a_{n+1}-6a_{n} Mathematical induction

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    7
  19. Hermitian matrix is diagonalizable and orthonormal basis

    Hermitian matrix is diagonalizable and orthonormal basis

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  20. More easy mathematical induction exercise

    More easy mathematical induction exercise

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  21. the field of quotients of an integral domain

    the field of quotients of an integral domain

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  22. Field theory (Abstract Algebra)

    Field theory (Abstract Algebra)

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  23. Mathematical induction middle level exercise

    Mathematical induction middle level exercise

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    7
  24. Linear map fixed point theorem

    Linear map fixed point theorem

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    14