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Commit 2022-04-17 15:18 e6322c6a

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feat(analysis/convex): golf some proofs (#13451)

Estimated changes

Modified src/algebra/order/smul.lean

Modified src/analysis/convex/extrema.lean

Modified src/analysis/convex/topology.lean

Modified src/data/real/cardinality.lean

Modified src/data/set/intervals/image_preimage.lean

deleted theorem set.image_inv_Ioo_0_left

added theorem set.inv_Ioi

added theorem set.inv_Ioo_0_left

Modified src/linear_algebra/affine_space/affine_map.lean

added theorem affine_map.homothety_mul_apply