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  2. Set (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Set_(mathematics)

    A set of polygons in an Euler diagram This set equals the one depicted above since both have the very same elements.. In mathematics, a set is a collection of different [1] things; [2] [3] [4] these things are called elements or members of the set and are typically mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or even other ...

  3. Table (parliamentary procedure) - Wikipedia

    en.wikipedia.org/wiki/Table_(parliamentary...

    Both the American and the British dialects have the expression "to table a topic" as a short way of saying "to lay a topic on the table" and "to make a topic lie on the table", but these have opposite meanings in the different varieties of the languages.

  4. Function (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Function_(mathematics)

    The definition of a function that is given in this article requires the concept of set, since the domain and the codomain of a function must be a set. This is not a problem in usual mathematics, as it is generally not difficult to consider only functions whose domain and codomain are sets, which are well defined, even if the domain is not ...

  5. Set function - Wikipedia

    en.wikipedia.org/wiki/Set_function

    If is a family of sets over (meaning that ℘ where ℘ denotes the powerset) then a set function on is a function with domain and codomain [,] or, sometimes, the codomain is instead some vector space, as with vector measures, complex measures, and projection-valued measures. The domain of a set function may have any number properties; the ...

  6. Complement (set theory) - Wikipedia

    en.wikipedia.org/wiki/Complement_(set_theory)

    If A is a set, then the absolute complement of A (or simply the complement of A) is the set of elements not in A (within a larger set that is implicitly defined). In other words, let U be a set that contains all the elements under study; if there is no need to mention U, either because it has been previously specified, or it is obvious and unique, then the absolute complement of A is the ...

  7. Element (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Element_(mathematics)

    The expressions "A includes x" and "A contains x" are also used to mean set membership, although some authors use them to mean instead "x is a subset of A". [2] Logician George Boolos strongly urged that "contains" be used for membership only, and "includes" for the subset relation only.

  8. Setting up to fail - Wikipedia

    en.wikipedia.org/wiki/Setting_up_to_fail

    Setting up to fail is a well-established workplace bullying tactic. [6] [7] [8] One technique is to overload with work, while denying the victim the authority to handle it and over-interfering; [9] another is the withholding of the information necessary to succeed.

  9. Subset - Wikipedia

    en.wikipedia.org/wiki/Subset

    In mathematics, a set A is a subset of a set B if all elements of A are also elements of B; B is then a superset of A. It is possible for A and B to be equal; if they are unequal, then A is a proper subset of B. The relationship of one set being a subset of another is called inclusion (or sometimes containment).