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Theorem set.subsingleton_of_image

Modification history

2022-12-07 20:30
src/data/set/basic.lean
refactor(data/set/basic): move image, preimage, and range to a new file (#17842) …
Modified set.subsingleton_of_imageView on Github →
2020-12-14 16:39
src/data/set/basic.lean
feat(topology/subset_properties): add instances for totally_disconnected_spaces (#5334) …
Added set.subsingleton_of_imageView on Github →