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Commit 2021-10-06 08:03 e52e5338

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feat(order/bounds): Antitone lemmas (#9556)

Estimated changes

Modified src/order/bounds.lean

added theorem antitone.image_lower_bounds_subset_upper_bounds_image

added theorem antitone.image_upper_bounds_subset_lower_bounds_image

added theorem antitone.is_lub_image_le

added theorem antitone.le_is_glb_image

added theorem antitone.map_bdd_above

added theorem antitone.map_bdd_below

added theorem antitone.map_is_greatest

added theorem antitone.map_is_least

added theorem antitone.mem_lower_bounds_image

added theorem antitone.mem_upper_bounds_image