Commit 2023-01-31 12:11 493d1014

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feat: port Topology.Maps (#1873)

Estimated changes

added theorem ClosedEmbedding.comp
added structure ClosedEmbedding
added theorem Embedding.continuous
added theorem Embedding.map_nhds_eq
added theorem Embedding.mk'
added structure Embedding
added theorem Inducing.dense_iff
added theorem Inducing.isClosedMap
added theorem Inducing.isClosed_iff'
added theorem Inducing.isClosed_iff
added theorem Inducing.isOpen_iff
added theorem Inducing.map_nhds_eq
added theorem Inducing.nhds_eq_comap
added structure Inducing
added theorem IsClosedMap.of_inverse
added def IsClosedMap
added theorem IsOpenMap.isOpen_range
added theorem IsOpenMap.nhds_le
added theorem IsOpenMap.of_inverse
added theorem IsOpenMap.of_nhds_le
added theorem IsOpenMap.of_sections
added def IsOpenMap
added theorem OpenEmbedding.of_comp
added structure OpenEmbedding
added theorem QuotientMap.of_inverse
added def QuotientMap
added theorem closedEmbedding_id
added theorem embedding_id
added theorem inducing_id
added theorem inducing_iff_nhds
added theorem inducing_induced
added theorem isOpenMap_iff_interior
added theorem isOpenMap_iff_nhds_le
added theorem openEmbedding_id
added theorem quotientMap_iff