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Mathematical Object

Addition

Algebra

Addition is one of the four basic operations of arithmetic, alongside subtraction, multiplication and division, and is usually written with the plus sign, as in three plus two equals five. It combines two or more numbers into a single total, or sum, and is commutative, so the order of the numbers does not change the result, and associative, so the grouping of numbers being added does not change the result either. Adding zero to any number leaves that number unchanged, which makes zero the operation's additive identity. Addition extends well beyond whole numbers, to integers, real and complex numbers, and abstract objects such as vectors and matrices, and is among the earliest numerical ideas a person learns, with studies finding that infants as young as five months can grasp the basic idea of one plus one. 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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Operator 1
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In Branch

Source Addition (Wikipedia)

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.

Sources
1. Addition (Wikipedia)
In Branch: Arithmetic, Lead sentence
Quote, In Branch: Arithmetic, Lead sentence
us sign +, is one of the four basic operations of arithmetic, the other three being subtraction, multiplication, and division.
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