# Definition:Entropic Structure

## Definition

An entropic structure is an algebraic structure $\struct {S, \circ}$ such that $\circ$ is an entropic operation.

That is, such that:

$\forall a, b, c, d \in S: \paren {a \circ b} \circ \paren {c \circ d} = \paren {a \circ c} \circ \paren {b \circ d}$

## Also see

• Results about entropic structures can be found here.