** The Cartesian product of any family of nonempty sets is nonempty.

** König's theorem: Colloquially, the sum of a sequence of cardinals is strictly less than the product of a sequence of larger cardinals.

** Tychonoff's theorem stating that every product of compact topological spaces is compact.

** Khoa, dairy product used in Indian cuisine

** Specification – specifying requirements of a design solution for a product ( product design specification ) or service.

** dot product,

** cross product,

** Hadamard product,

** Kronecker product.

** Wedge product or exterior product

** Interior product

** Outer product

** Tensor product

** the Cartesian product of sets,

** the product of groups, and also the semidirect product, knit product and wreath product,

** the free product of groups

** the product of rings,

** In topology, morphisms between topological spaces are called continuous maps, and an automorphism of a topological space is a homeomorphism of the space to itself, or self-homeomorphism ( see homeomorphism group ).

** The set of infinite strings is the inverse limit of the set of finite strings, and is thus endowed with the limit topology.

** the cap, cup and slant product in algebraic topology.

** Category ( topology ) in the context of Baire spaces

** Section ( fiber bundle ), in topology

** Join ( topology ), an operation combining two topological spaces

** Frobenius theorem ( differential topology )

** Cover ( topology ), a system of ( usually, open or closed ) sets whose union is a given topological space

** The topology of F ( M ) depends only on the topology of M, not on the metric d.

** Hausdorff topologies are better-behaved than those in arbitrary general topology.

** Differential topology, in multivariable calculus, the differential of a smooth map between Euclidean spaces or differentiable manifolds is the approximating linear map between the tangent spaces, called pushforward ( differential )

** Gromov's compactness theorem ( topology ) in symplectic topology

** Krull topology

** In geographic information systems and their data structures, the terms " topology " and " planar enforcement " are used to indicate that the border line between two neighboring areas ( and the border point between two connecting lines ) is stored only once.

** Also in cartography, a topological map is a much simplified map that preserves the mathematical topology while sacrificing scale and shape

** triangulation ( topology ), generalizations to topological spaces other than R < sup > d </ sup >

** Arbitrated loop, for second alternate FC topology

** Fibre Channel point-to-point, for alternate FC topology

** Continuity ( topology ), a generalization to functions between topological spaces

** End ( topology )

** Every field has an algebraic closure.

** Stadium closure, 10 points

** Bottle cap, a closure to seal bottles

** Screw cap, a closure to seal bottles or jars

** Transitive closure –

** The upper airway receptors are responsible for reflex responses such as, sneezing, coughing, closure of glottis, and hiccups.

** For example, a severely undervirilized boy with a pseudovaginal perineoscrotal hypospadias may have midline urogenital closure, third degree hypospadias repair, chordee release and phalloplasty, and orchiopexy performed.

** Late Permian paleoglobe showing the expanding Tethys Ocean, the closure of Paleo-Tethys, and the movement of the Cimmerian Plate

** then, six 13. 7m stand-alone antennas were sited at and beyond the ends of the N-S and E-W solar arrays, which comprised the Fleurs Synthesis Telescope with a resolving power of 20 arc seconds, used in the 1970s and until its closure in 1988 studying individual radio sources but particularly large radio galaxies, supernova remnants and emission nebulae.

** closure and stabilization: when the relevant social group has reached a consensus

** 3. 14 Knowledge of post-implementation review objectives and practices ( e. g., project closure, control implementation, benefits realization, performance measurement )

** a shallow, plastic or paper container, typically with a lid or closure

** Fall Creek Elementary School ( see below on proposed closure )

** After closure as a middle school, the facility was used as the Lewisville High 9th Grade Campus until its new facility opened in 2005, whereupon it was closed and unoccupied.