image/svg+xml 1 2 3 4 5 Cartan : 2 - 1 0 0 0 0 - 1 2 - 1 - 1 0 0 0 - 1 2 0 0 0 0 - 1 0 2 - 1 0 0 0 0 - 1 2 - 1 0 0 0 0 - 2 2 Schlafli : 2 - 1 0 0 0 0 - 1 2 - 1 - 1 0 0 0 - 1 2 0 0 0 0 - 1 0 2 - 1 0 0 0 0 - 1 2 - 2 0 0 0 0 - 2 2 Coxeter : 1 3 2 2 2 2 3 1 3 3 2 2 2 3 1 2 2 2 2 3 2 1 3 2 2 2 2 3 1 4 2 2 2 2 4 1 B 5 ~ 6
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