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Cell (mathematics)

A cell is a three-dimensional object that is part of a higher-dimensional object, such as a polychoron. A cell is related to higher-dimensional objects in the way that a face, or two-dimensional polygon, is related to higher-dimensional objects. For example, a cell is to a 4-dimensional polytope, or polychoron, what a face is to a 3-dimensional polytope, or polyhedron.



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Aberfoyle

... Road, was opened to the public in 1931 when the Forestry Commission acquired the land. Loch Ard[?], about 2 m. W. of Aberfoyle, lies 105 ft. above the sea. It is 3 ...