# Number

> What can be counted or measured?

Record: `reasoning:math-domain-number`
Kind: math-domain
Canonical: https://banes-lab.com/ontology/reasoning#reasoning-math-domain-number

Listed in [Reasoning records](https://banes-lab.com/api/records/reasoning.md), after [Complexity](https://banes-lab.com/records/reasoning/lens-complexity.md) and before [Algebra](https://banes-lab.com/records/reasoning/math-domain-algebra.md).

## Concept of

- [Number](https://banes-lab.com/records/reasoning/pattern-type-number.md)
- [Number](https://banes-lab.com/records/reasoning/representation-number.md)