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Tagged: triangular number

Tetractys

Posted by hexnet :: 2010-06-20 02:14
Tetractys

The Tetractys is a triangular figure of ten points arranged in four rows, equivalent to the fourth triangular number. It was considered sacred by the ancient Pythagoreans of yore.

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Tags:
pythagorean, sacred geometry, hexagonal lattice, decad, platonism, tetractys, triangular number
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