# [Finite congruence lattices: characterization and undecidability](paper.pdf)

**Author:** OpenAI

**Date:** September 24, 2026

## Citation

```bibtex
@misc{OAI:Finite-Congruence-Lattices-Characterization-and-Undecidability-September-24-2026,
  author = {{OpenAI}},
  title = {{Finite congruence lattices: characterization and undecidability}},
  howpublished = {OpenAI Math Release preprint
                  \href{https://github.com/openai/math/blob/main/preprints/Finite-Congruence-Lattices-Characterization-and-Undecidability-September-24-2026/paper.pdf}{OAI:Finite-Congruence-Lattices-Characterization-and-Undecidability-September-24-2026}},
  year = {2026}
}
```