* Correction: Steve's legacy
@ 2015-07-22 2:29 wlawvere
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From: wlawvere @ 2015-07-22 2:29 UTC (permalink / raw)
To: categories
The quadratic equation satisfied by the arrow graph
is X^2 = X+2D, not X+2. [The generic dot D is not
the terminal object 1 in this category. See p. 267
Conceptual Mathematics, 2nd edition.]
Bill
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