Definition 20.12.1. Let X be a topological space. We say a presheaf of sets \mathcal{F} is flasque or flabby if for every U \subset V open in X the restriction map \mathcal{F}(V) \to \mathcal{F}(U) is surjective.
Definition 20.12.1. Let X be a topological space. We say a presheaf of sets \mathcal{F} is flasque or flabby if for every U \subset V open in X the restriction map \mathcal{F}(V) \to \mathcal{F}(U) is surjective.
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