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  2. Subsidiarity - Wikipedia

    en.wikipedia.org/wiki/Subsidiarity

    Subsidiarity is a principle of social organization that holds that social and political issues should be dealt with at the most immediate or local level that is consistent with their resolution.

  3. List of theorems - Wikipedia

    en.wikipedia.org/wiki/List_of_theorems

    This is a list of notable theorems.Lists of theorems and similar statements include: List of algebras; List of algorithms; List of axioms; List of conjectures

  4. Landau's problems - Wikipedia

    en.wikipedia.org/wiki/Landau's_problems

    Goldbach's weak conjecture, every odd number greater than 5 can be expressed as the sum of three primes, is a consequence of Goldbach's conjecture. Ivan Vinogradov proved it for large enough n (Vinogradov's theorem) in 1937, [1] and Harald Helfgott extended this to a full proof of Goldbach's weak conjecture in 2013.

  5. Birch and Swinnerton-Dyer conjecture - Wikipedia

    en.wikipedia.org/wiki/Birch_and_Swinnerton-Dyer...

    This statement, due to Tunnell's theorem (Tunnell 1983), is related to the fact that n is a congruent number if and only if the elliptic curve y 2 = x 3 − n 2 x has a rational point of infinite order (thus, under the Birch and Swinnerton-Dyer conjecture, its L-function has a zero at 1). The interest in this statement is that the condition is ...

  6. Ruffini's rule - Wikipedia

    en.wikipedia.org/wiki/Ruffini's_rule

    Ruffini's rule can be used when one needs the quotient of a polynomial P by a binomial of the form . (When one needs only the remainder, the polynomial remainder theorem provides a simpler method.) A typical example, where one needs the quotient, is the factorization of a polynomial p ( x ) {\displaystyle p(x)} for which one knows a root r :

  7. Auxiliary function - Wikipedia

    en.wikipedia.org/wiki/Auxiliary_function

    The theorem implies both the Hermite–Lindemann and Gelfond–Schneider theorems. [8] The theorem deals with a number field K and meromorphic functions f 1 ,..., f N of order at most ρ , at least two of which are algebraically independent, and such that if we differentiate any of these functions then the result is a polynomial in all of the ...

  8. Two-body problem in general relativity - Wikipedia

    en.wikipedia.org/wiki/Two-body_problem_in...

    In the normal Euclidean geometry, triangles obey the Pythagorean theorem, which states that the square distance ds 2 between two points in space is the sum of the squares of its perpendicular components = + + where dx, dy and dz represent the infinitesimal differences between the x, y and z coordinates of two points in a Cartesian coordinate ...

  9. Subsidiary - Wikipedia

    en.wikipedia.org/wiki/Subsidiary

    A first-tier subsidiary is a subsidiary/child company of the ultimate parent company, [note 1] [4] while a second-tier subsidiary is a subsidiary of a first-tier subsidiary: a "grandchild" of the main parent company. [5] Consequently, a third-tier subsidiary is a subsidiary of a second-tier subsidiary—a "great-grandchild" of the main parent ...