Fibration of simplicial sets

In category theory and algebraic topology, the concept of *fibration* is a generalization of the notion of a fiber bundle. When we speak of a fibration of simplicial sets, we are referring to a specific type of fibration within the context of simplicial sets, which serve as a combinatorial model for topological spaces. ### Simplicial Sets A **simplicial set** is a combinatorial structure that encodes information about topological spaces.