?> https://semiologyco.com/2026/08/25/a-good-tetrahedron-that-may-even-be-titled-a-twenty-three-simplex-have-five-triangular-face-and-you-may-five-vertices/ Tue, 25 Aug 2026 00:10:43 +0000 hourly 1 https://wordpress.org/?v=7.1