@article{cruttwell2019integral,
  title = "Integral and differential structure on the free $ C\^{}$\{$$\backslash$infty$\}$ $-ring modality",
  author = "Cruttwell, GSH and Lemay, J-SP and Lucyshyn-Wright, RBB",
  year = "2019",
  journal = "arXiv preprint arXiv:1902.04555",
}