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sheaf [2014/10/29 10:12] nikolaj |
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==== Discussion ==== | ==== Discussion ==== | ||
+ | As in [[seperated presheaf]], $t|_V$ denotes the image of $t$ under $F(i)$ with $i:V\to W$. | ||
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===Elaboration=== | ===Elaboration=== | ||
Previously, we defined the 'Locality axiom' which makes a [[presheaf . topology|presheaf]] into a [[seperated presheaf]]. The postulate in this entry is the second axiom which makes a [[seperated presheaf]] into a sheaf. | Previously, we defined the 'Locality axiom' which makes a [[presheaf . topology|presheaf]] into a [[seperated presheaf]]. The postulate in this entry is the second axiom which makes a [[seperated presheaf]] into a sheaf. |