= Polynomial functor
{wiki=Polynomial_functor}
A **polynomial functor** is a concept from category theory, particularly in the field of algebraic structures in categories. It provides a structured way to describe functors that have a form similar to polynomial expressions. \#\#\# Definition In simple terms, a polynomial functor can be viewed as a functor that combines different types of "operations" such as sums and products, much like a polynomial combines variables with coefficients using addition and multiplication.
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