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71Okinawa Prefecture — Okinawa redirects here. For other uses, see Okinawa (disambiguation). Okinawa Prefecture Japanese transcription(s)  – Japanese 沖縄県  – Rōmaji Okinawa ken Okinawan transcription(s) …
72Portable Network Graphics — PNG A PNG image with an 8 bit transparency channel (top). The same image is overlaid onto a checkered background (botto …
73Tesseract — For other uses, see Tesseract (disambiguation). Tesseract 8 cell 4 cube Schlegel diagram Type Convex regular 4 polytope …
74Xiangqi — Chinese chess redirects here. For other uses, see Chinese chess (disambiguation). Xiangqi Xiangqi board with pieces in their starting positions Genre(s) Board game Players 2 …
7524-cell — Schlegel diagram (vertices and edges) Type Convex regular 4 polytope Schläfli symbol {3,4,3} t …
76Coxeter group — In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry …
77List of municipalities of Portugal — This is a list of the municipalities of Portugal. Portugal is divided into 18 districts (Portuguese: distritos) and 2 autonomous regions (regiões autónomas), Azores and Madeira. The districts and autonomous regions are further sub divided into… …
78Cross-polytope — In geometry, a cross polytope,[1] orthoplex,[2] hyperoctahedron, or cocube is a regular, convex polytope that exists in any number of dimensions. The vertices of a cross polytope are all the permutations of (±1, 0, 0, …, 0). The cross polytope is …
7916-cell — Regular hexadecachoron (16 cell) (4 orthoplex) Schlegel diagram (vertices and edges) Type Convex regular 4 polytope Schläfli symbo …
80Awards and decorations of the National Guard — are presented to members of the United States National Guard and sometimes to members of the State Defense Forces in addition to regular United States military decorations. Each of the state governments of the United States maintains a series of… …
