Constructibility or constructability may refer to: *

Constructability Constructability (or buildability) is a concept that denotes ease of construction. It can be central to project management techniques to review construction processes from start to finish during pre-construction phase. Buildability assessment is ...

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 constructible strategy game (CSG) (also spelled constructable strategy game) is a tabletop strategy game employing pieces assembled from components. WizKids was the first to label a game as a CSG when they released their game '' Pirates of the ...

, a tabletop strategy game employing pieces assembled from components

Mathematics

Compass-and-straightedge construction In geometry, straightedge-and-compass construction – also known as ruler-and-compass construction, Euclidean construction, or classical construction – is the construction of lengths, angles, and other geometric figures using only an ideali ...

* 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 In mathematics, a constructible polygon is a regular polygon that can be Compass and straightedge constructions, constructed with compass and straightedge. For example, a regular pentagon is constructible with compass and straightedge while a regu ...

, a regular polygon that can be constructed with compass and straightedge *

Constructible sheaf In mathematics, a constructible sheaf is a sheaf of abelian groups over some topological space ''X'', such that ''X'' is the union of a finite number of locally closed subsets on each of which the sheaf is a locally constant sheaf. It has its origi ...

, a certain kind of sheaf of abelian groups *

Constructible set (topology) In topology, constructible sets are a class of subsets of a topological space that have a relatively "simple" structure. They are used particularly in algebraic geometry and related fields. A key result known as ''Chevalley's theorem'' in algebraic ...

, a finite union of locally closed sets *

Constructible topology In commutative algebra, the constructible topology on the spectrum \operatorname(A) of a commutative ring A is a topology where each closed set is the image of \operatorname (B) in \operatorname(A) for some algebra ''B'' over ''A''. An important fea ...

, 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 In mathematics, in set theory, the constructible universe (or Gödel's constructible universe), denoted by L, is a particular Class (set theory), class of Set (mathematics), sets that can be described entirely in terms of simpler sets. L is the un ...

, Kurt Gödel's model ''L'' of set theory, constructed by transfinite recursion *

Constructible function In complexity theory, a time-constructible function is a function ''f'' from natural numbers to natural numbers with the property that ''f''(''n'') can be constructed from ''n'' by a Turing machine in the time of order ''f''(''n''). The purpose of ...

, 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 {{disambiguation Mathematics disambiguation pages