Constructibility

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Constructibility or constructability may refer to:

  • Constructability or construction feasibility review, a process in construction design whereby plans are reviewed by others familiar with construction techniques and materials to assess whether the design is actually buildable
  • Constructible strategy game, a tabletop strategy game employing pieces assembled from components

Mathematics

  • Compass-and-straightedge construction
  • Constructible point
    , a point in the Euclidean plane that can be constructed with compass and straightedge
  • Constructible number, a complex number associated to a constructible point
  • Constructible polygon, a regular polygon that can be constructed with compass and straightedge
  • Constructible sheaf, a certain kind of sheaf of abelian groups
  • Constructible set (topology), a finite union of locally closed sets
  • Constructible topology, a topology on the spectrum of a commutative ring y in which every closed set is the image of Spec(B) in Spec(A) for some algebra B over A
  • Constructible universe, Kurt Gödel's model L of set theory, constructed by transfinite recursion
  • Constructible function, a function whose values can be computed in a number of steps or a number of Turing-machine cells of order given by the function itself