Definition 6.3.2. Let X be a topological space. Let A be a set. The constant presheaf with value A is the presheaf that assigns the set A to every open U \subset X, and such that all restriction mappings are \text{id}_ A.
Definition 6.3.2. Let X be a topological space. Let A be a set. The constant presheaf with value A is the presheaf that assigns the set A to every open U \subset X, and such that all restriction mappings are \text{id}_ A.
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