Claim: Ludwig Schläfli (15 January 1814 – 20 March 1895) was a Swiss mathematician know for higher-dimensional spaces and polytopes and specialising in geometry and complex analysis.
Evidence: Ludwig Schläfli (15 January 1814 – 20 March 1895) was a Swiss mathematician, specialising in geometry and complex analysis (at the time called function theory) who was one of the key figures in developing the notion of higher-dimensional spaces. Higher-dimensional spaces, polytopes