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Duality for some free modes. (English) Zbl 1060.08009
The authors describe the dual of the category of affine spaces over a field $$P$$ as the category of certain affine spaces over $$P$$ with constants. Other related dualities are considered as well.

##### MSC:
 08C05 Categories of algebras 18C05 Equational categories 08B20 Free algebras
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