Example image of eyePlorer eyePlorer map for 'Gosset 4 21 polytope': Dimension Facet (mathematics) Heptacross Octaexon Polytope Uniform polytope Thorold Gosset Semiregular k 21 polytope Coxeter–Dynkin diagram Harold Scott MacDonald Coxeter E8 (mathematics) Simple Lie group Petrie polygon Hyperplane Wythoff construction Triangular prism Complex polytope Gosset 1 42 polytope Gosset 2 41 polytope Vertex figure Enneazetton Alicia Boole Stott Demipenteract 8-polytope E8 An Exceptionally Simple Theory of Everything E8 lattice
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