nullary sum
Look at other dictionaries:
Empty sum — Not to be confused with Zero sum. In mathematics, an empty sum, or nullary sum, is a summation involving no terms at all. The value of any empty sum of numbers is conventionally taken to be zero. For summations defined in terms of addition of… … Wikipedia
empty sum — noun The result of adding no numbers (defined in order to be able to extend certain mathematical concepts, such as the sum of numbers, to the case where = 0). Syn: nullary sum … Wiktionary
Empty product — In mathematics, an empty product, or nullary product, is the result of multiplying no factors. It is equal to the multiplicative identity 1, given that it exists for the multiplication operation in question, just as the empty sum the result of… … Wikipedia
Preadditive category — In mathematics, specifically in category theory, a preadditive category is a category that is enriched over the monoidal category of abelian groups. In other words, the category C is preadditive if every hom set Hom(A,B) in C has the structure of … Wikipedia
Biproduct — In category theory and its applications to mathematics, a biproduct is a generalisation of the notion of direct sum that makes sense in any preadditive category.DefinitionLet C be a preadditive category.In particular, morphisms in C can be… … Wikipedia
Arity — In logic, mathematics, and computer science, the arity i/ˈær … Wikipedia
Thunk — The word thunk has at least three related meanings in computer science. A thunk may be: * a piece of code to perform a delayed computation (similar to a closure) * a feature of some virtual function table implementations (similar to a wrapper… … Wikipedia
Glossary of topology — This is a glossary of some terms used in the branch of mathematics known as topology. Although there is no absolute distinction between different areas of topology, the focus here is on general topology. The following definitions are also… … Wikipedia
Algebraic data type — In computer programming, particularly functional programming and type theory, an algebraic data type (sometimes also called a variant type[1]) is a datatype each of whose values is data from other datatypes wrapped in one of the constructors of… … Wikipedia
Empty set — ∅ redirects here. For similar looking symbols, see Ø (disambiguation). The empty set is the set containing no elements. In mathematics, and more specifically set theory, the empty set is the unique set having no elements; its size or cardinality… … Wikipedia
