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Commit 2022-08-31 14:18 27d83241

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feat(topology/sheaves/sheaf_condition): Description of sections on the union of two open sets. (#16093)

Estimated changes

Modified src/algebra/category/Ring/constructions.lean

added def CommRing.pullback_cone

added def CommRing.pullback_cone_is_limit

Modified src/topology/sheaves/sheaf_condition/pairwise_intersections.lean

modified def Top.sheaf.inter_union_pullback_cone_lift

modified def Top.sheaf.is_product_of_disjoint

added def Top.sheaf.obj_sup_iso_prod_eq_locus

added theorem Top.sheaf.obj_sup_iso_prod_eq_locus_hom_fst

added theorem Top.sheaf.obj_sup_iso_prod_eq_locus_hom_snd

added theorem Top.sheaf.obj_sup_iso_prod_eq_locus_inv_fst

added theorem Top.sheaf.obj_sup_iso_prod_eq_locus_inv_snd

Modified src/topology/sheaves/sheaf_condition/unique_gluing.lean

added theorem Top.sheaf.eq_of_locally_eq₂