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Commit 2022-05-18 01:20 f48cbb16

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feat(category_theory/limits): reindexing (co/bi)products (#14193)

Estimated changes

Modified src/category_theory/limits/shapes/biproducts.lean

added def category_theory.limits.biproduct.reindex

Modified src/category_theory/limits/shapes/products.lean

added def category_theory.limits.pi.reindex

added theorem category_theory.limits.pi.reindex_hom_π

added theorem category_theory.limits.pi.reindex_inv_π

added def category_theory.limits.sigma.reindex

added theorem category_theory.limits.sigma.ι_reindex_hom

added theorem category_theory.limits.sigma.ι_reindex_inv