# POPULATION

> The set a check ranges over, measured · zero of zero is not evidence

Record: `pag:keyword-validation-population`
Kind: keyword
Canonical: https://banes-lab.com/ontology/grammar#pag-keyword-validation-population

Listed in [Grammar records](https://banes-lab.com/api/records/pag.md), after [CHECK](https://banes-lab.com/records/pag/keyword-validation-check.md) and before [REFUSE](https://banes-lab.com/records/pag/keyword-validation-refuse.md).

## Grounds

- [node:ver-population](https://banes-lab.com/records/reasoning/node-ver-population.md)
- [invariant:epi-declared-domain](https://banes-lab.com/records/reasoning/invariant-epi-declared-domain.md)

## Linked from

- [The nodes](https://banes-lab.com/ontology/reasoning/the-nodes.md)
- [The invariants](https://banes-lab.com/ontology/reasoning/the-invariants.md)