# just (exact)

that which does not differ from the thing it is about

- Computed level: L2 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: emergence  ·  Arena: just

## Emergence
**Emerges from:** [difference](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-difference.relation), [pattern](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-pattern.regularity)

**Through:** the two together remove any difference so the pattern matches exactly

**Novel properties:**
- precise adequacy
- exact matching

## Examples
- The number π is identical to the ratio of a circle's circumference to its diameter in Euclidean space. *(mathematics)*
- In a perfect vacuum, the speed of light is exactly 299,792,458 m/s, matching the defined value in the SI unit system. *(physics)*
- The Unix epoch begins precisely at 00:00:00 UTC on January 1, 1970, by definition. *(computing)*

## Used by
- [agreement](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-agreement.social) (L8)
- [almost](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-almost.approximation) (L4)
- [appropriate](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-appropriate.suitable) (L3)
- [black](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-black.color) (L8)
- [center](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-center.location) (L3)
- [centre](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-centre.location) (L3)
- [certain](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-certain.confidence) (L8)
- [check](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-check.verification) (L9)
- [clear](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-clear.transparent) (L9)
- [exact](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-exact.precision) (L3)
- [fine](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-fine.quality) (L7)
- [half](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-half.ratio) (L4)
- [identifier](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-identifier.label) (L8)
- [level](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-level.spatial) (L16)
- [mid](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-mid.spatial) (L4)
- [really](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-really.intensifier) (L3)
- [specific](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-specific.detail) (L3)
- [standard](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-standard.norm) (L14)
- [sure](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sure.confidence) (L9)
- [true](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-true.accurate) (L3)

---
*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-just.exact*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-just.exact.json*  
*Every definition provably resolves to space, time, energy and pattern.*