Henning Basold, Peter Bruin, Dominique Lawson. The Directed Van Kampen Theorem in Lean. In Yves Bertot, Temur Kutsia, Michael Norrish, editors, 15th International Conference on Interactive Theorem Proving, ITP 2024, September 9-14, 2024, Tbilisi, Georgia. Volume 309 of LIPIcs, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2024. [doi]
Abstract is missing.