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In set theory, a projection is one of two closely related types of functions or operations, namely: A set-theoretic operation typified by the j {\displaystyle...

Projection (set theory), one of two closely related types of functions or operations in set theory Projection (measure theory), use of a projection map...

closely related concept in set theory (see: projection (set theory)) differs from that of relational algebra in that, in set theory, one projects onto ordered...

of relatives Object-role modeling Projection (mathematics) Projection (relational algebra) Projection (set theory) Relation Relation (database) Relation...

S} of sets, consider the Cartesian product X = ∏ Y ∈ S Y {\textstyle X=\prod _{Y\in S}Y} of all sets in the collection. The canonical projection corresponding...

projection-valued measure (or spectral measure) is a function defined on certain subsets of a fixed set and whose values are self-adjoint projections...

In measure theory, projection maps often appear when working with product (Cartesian) spaces: The product sigma-algebra of measurable spaces is defined...

In mathematical logic, descriptive set theory (DST) is the study of certain classes of "well-behaved" subsets of the real line and other Polish spaces...

set theory Naïve set theory One-to-one correspondence Ordered pair Partition of a set Pointed set Power set Projection (set theory) Proper subset Proper...

In mathematics, a projection is an idempotent mapping of a set (or other mathematical structure) into a subset (or sub-structure). In this case, idempotent...

relatives Logical matrix Partial order Predicate (mathematical logic) Projection (set theory) Reflexive relation Relation algebra Relational algebra Relational...

stereographic projection is a perspective projection of the sphere, through a specific point on the sphere (the pole or center of projection), onto a plane...

Axiomatic constructive set theory is an approach to mathematical constructivism following the program of axiomatic set theory. The same first-order language...

Oblique projection is a simple type of technical drawing of graphical projection used for producing two-dimensional (2D) images of three-dimensional (3D)...

In set theory, König's theorem states that if the axiom of choice holds, I is a set, κ i {\displaystyle \kappa _{i}} and λ i {\displaystyle \lambda _{i}}...

Power set Projection Quasi-set theory Relation Rough set Russell's paradox Semiset Set theory Alternative set theory Axiomatic set theory General set theory...

topological space and the connection is a continuous projection). The language of named set theory can be used in the definitions of all of these abstract...

satisfying a free universal property for a given set. Adjoint functors Functors Projection (set theory) Mac Lane, Saunders. Categories for the Working...

In mathematics, projections onto convex sets (POCS), sometimes known as the alternating projection method, is a method to find a point in the intersection...

{\Pi }}_{1}^{1}} is the set of Borel sets. Projection (measure theory) Lorentz, G. G. (2001). "Who discovered analytic sets?". The Mathematical Intelligencer...