Mathlib v3 is deprecated. Go to Mathlib v4

Theorem set.mem_preimage

Modification history

2023-06-30 11:29
src/data/set/image.lean
refactor(*): move all `mk_simp_attribute` commands to 1 file (#19223)
Modified set.mem_preimageView on Github →
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.mem_preimageView on Github →
2019-07-04 10:24
src/data/set/basic.lean
chore(data/set): set.mem_preimage_eq becomes an iff (#1174) …
Added set.mem_preimageView on Github →