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  1. Very funny math question solve x for x^x^n=n

    Very funny math question solve x for x^x^n=n

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  2. Schrodinger equation and Klein Gordan equation continuity equation

    Schrodinger equation and Klein Gordan equation continuity equation

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  3. Prove Method of infinite Descent (Vieta's jumping) : (x^2+y^2+1)/xy=3

    Prove Method of infinite Descent (Vieta's jumping) : (x^2+y^2+1)/xy=3

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  6. Prove Method of infinite Descent : square 2 is irrational

    Prove Method of infinite Descent : square 2 is irrational

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  7. Prove Method of infinite Descent : no nontrivial solutions x^2+y^2=3z^2

    Prove Method of infinite Descent : no nontrivial solutions x^2+y^2=3z^2

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  8. Prove Method of infinite Descent (Vieta's jumping) : (4a^2-1)^2/(4ab-1) is integer, then a=b

    Prove Method of infinite Descent (Vieta's jumping) : (4a^2-1)^2/(4ab-1) is integer, then a=b

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  9. Prove Method of infinite Descent : square k is irrational if k is not square free

    Prove Method of infinite Descent : square k is irrational if k is not square free

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  10. Prove Method of infinite Descent (Vieta's jumping) : (a^2+b^2)/(ab+1) is square, imo1988

    Prove Method of infinite Descent (Vieta's jumping) : (a^2+b^2)/(ab+1) is square, imo1988

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  11. Normal subgroup and quotient subgroup

    Normal subgroup and quotient subgroup

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  12. There exist distinct integers x,y,z for which, x^2+y^2+z^2=14^n

    There exist distinct integers x,y,z for which, x^2+y^2+z^2=14^n

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  13. Plot Mcdonald Shape by function

    Plot Mcdonald Shape by function

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  14. zero morphism and kernel and cokernel

    zero morphism and kernel and cokernel

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  16. Cauchy's theorem for the abelian group, Sylow theorem for abelian group

    Cauchy's theorem for the abelian group, Sylow theorem for abelian group

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  18. Homomorphism of ring and ideal, quotient ring

    Homomorphism of ring and ideal, quotient ring

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  19. Polynomial ring over rationals

    Polynomial ring over rationals

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  21. Polynomial over a commutative ring

    Polynomial over a commutative ring

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  24. Show e really exists in one page

    Show e really exists in one page

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  25. Ring theory lecture - definition

    Ring theory lecture - definition

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