Hexagon identities are a set of equations that describe relationships between various structures in braided monoidal categories, emphasizing how different ways of composing morphisms lead to consistent results. These identities arise when analyzing the coherence conditions that govern the interactions between the braiding and associativity constraints within such categories. They serve as essential tools in understanding how diagrams can be transformed without changing their overall meaning, making them crucial for coherence theorems in category theory.
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