Arity is the number of arguments or operands taken by a function, operation or relation. A function that takes no arguments is called nullary, one that takes a single argument is unary, one that takes two arguments is binary, and one that takes three is ternary, with the general case for n arguments called n-ary. Common binary operations include ordinary addition and multiplication, and many programming languages include a ternary conditional operator. In mathematics arity is sometimes called rank, in logic and philosophy it is sometimes called adicity or degree, and the closely related idea is called valency in linguistics. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
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Is Kind Of Object
Entity-backed identity for the object-kind enum value this mathematical object already carries, resolved to a mathematics concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The object-kind fact itself stays on the object unchanged.
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1. Arity (Wikipedia)
In Branch: Logic and Foundations, Lead sentenceQuote, In Branch: Logic and Foundations, Lead sentence
In logic, mathematics, and computer science, arity ( ) is the number of arguments or operands taken by a function, operation or re
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