# Q100003 — Euclidean geometry

**First-party 4P Engine Logos Encyclopedia editorial synthesis.**

This is first-party 4P Engine editorial work, distinct from Maclain Hunter's static Q works and from provisional Wikidata-derived items.

## Definition
Euclidean geometry is the study of spatial relations governed by the Euclidean postulate system.

An accepted stipulated definition establishes local encyclopedia usage; it is not empirical proof.

## Accepted claims and scope
### stipulated_definition
Euclidean geometry is the study of spatial relations governed by the Euclidean postulate system.

**Scope:** Declared first-party usage for this encyclopedia entry; not a universal or empirical assertion.

### stipulated_definition
This entry identifies a geometry by its postulate framework and does not equate it with every practical measurement convention.

**Scope:** Declared local editorial disambiguation or distinction for this entry; this claim sets usage and does not assert a contingent world fact.

### stipulated_definition
In this entry, Euclidean geometry is distinguished from non-Euclidean geometries by its governing postulate system.

**Scope:** Declared local editorial disambiguation or distinction for this entry; this claim sets usage and does not assert a contingent world fact.

### stipulated_definition
A geometric model and a physical space measured with instruments are separate subjects.

**Scope:** Declared local editorial disambiguation or distinction for this entry; this claim sets usage and does not assert a contingent world fact.

## Disambiguation
This entry identifies a geometry by its postulate framework and does not equate it with every practical measurement convention.

## Editorial distinctions
In this entry, Euclidean geometry is distinguished from non-Euclidean geometries by its governing postulate system.

A geometric model and a physical space measured with instruments are separate subjects.

## Record-level original-text rights
**Original-text rights attestation:** Attested. The submitted definition, disambiguation, distinctions, and claim wording are original first-party editorial text; no external prose has been copied or adapted.

## Source provenance and rights
No independently verified external source is asserted for the stipulative core.



## Related atlas concepts — editorial navigation
Atlas relations are editorial navigation links, not validated equivalence or entailment.

- related: Prime number (atlas.concept.prime-number)

## Review evidence boundary
Only accepted claims are eligible for the first-party core. External evidence remains bounded to its verified provenance; authorship attribution is not asserted.

## Publication metadata
Published: 2026-09-28T09:46:59.403Z
Protocol/version: logos_encyclopedia_published_v1 / 7

Canonical: https://4p-mcb.com/q/Q100003