@InProceedings{basold_et_al:LIPIcs.ITP.2024.8,
  author =	{Basold, Henning and Bruin, Peter and Lawson, Dominique},
  title =	{{The Directed Van Kampen Theorem in Lean}},
  booktitle =	{15th International Conference on Interactive Theorem Proving (ITP 2024)},
  pages =	{8:1--8:18},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-337-9},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{309},
  editor =	{Bertot, Yves and Kutsia, Temur and Norrish, Michael},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ITP.2024.8},
  URN =		{urn:nbn:de:0030-drops-207368},
  doi =		{10.4230/LIPIcs.ITP.2024.8},
  annote =	{Keywords: Lean, Directed Topology, Van Kampen Theorem, Directed Homotopy Theory, Formalised Mathematics}
}