Tesseract « Log24

Tuesday, January 31, 2012

Tesseract

Filed under: General,Geometry — Tags: Arbitration, four-set — m759 @ 12:21 pm

"… a finite set with n elements
is sometimes called an n-set …."

Tesseract formed from a 4-set—

The same 16 subsets or points can
be arranged in a 4×4 array that has,
when the array's opposite edges are
joined together, the same adjacencies
as those of the above tesseract.

"There is such a thing as a 4-set."
— Saying adapted from a novel

Update of August 12, 2012:

Figures like the above, with adjacent vertices differing in only one coordinate,
appear in a 1950 paper of H. S. M. Coxeter—

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