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Robert G de Boer's blog

Complementary numerals

Sometimes a change of notation can advance thought. In today's blog the tradition of numerals 6,7,8, and 9 will be challenged. 

Suppose the five letters a, b, c, d, and e are used to represent numbers satisfying

a + 1 = 0,  b + 2 = 0,  c + 3 = 0,  d + 4 = 0,  e + 5 = 0.

Corner flow

Adventures in 9-space

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