@article{anoteoninvariantextensionsofpreorders,
  title = {A Note on Invariant Extensions of Preorders},
  author = {Peter Caradonna and Christopher P. Chambers},
  year = {2023},
  eprint = {2303.04522},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2303.04522v1},
}