# Categories

[Latest](https://halcyonic.discourse.group/latest.md) · [Categories](https://halcyonic.discourse.group/categories.md) · [Tags](https://halcyonic.discourse.group/tags.md)

## [Foundations](https://halcyonic.discourse.group/c/foundations/9.md)

Ontology, epistemology, what is a system, GST candidates, and the deep questions of systems science.

## [Formalization](https://halcyonic.discourse.group/c/formalization/10.md)

Category theory, Lean 4, mathematical foundations, computational modeling, and rigorous systems frameworks.

## [Reading Room](https://halcyonic.discourse.group/c/reading-room/11.md)

Paper discussions, book clubs, theory reviews, and shared reading.

## [Projects](https://halcyonic.discourse.group/c/projects/12.md)

Collaborative projects: glossaries, ontologies, tools, visualizations, and open-source work.

## [Field Reports](https://halcyonic.discourse.group/c/field-reports/13.md)

Applying systems thinking to real domains — crypto, neuroscience, governance, ecology, economics, and beyond.