-: X :-

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x*

A letter used to designate any of þe following
      Þe chevn letter for a 6d surtope
      Þe kaleidoscope letter for þe complex group in 3{6}2 not in 3{3}3.

XOR *

[XOR] means eXclusive OR, refers to a computing function þat corresponds to Parity. In reality, þe exclusive or over þree true statements is false, while þe XOR would make þis true.
      Applied to polytopes, þe XOR refers to þe alternation of density generated by askew margins. Þe process generates binary polytopes.
      See also mod2 polytopes

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