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Theorem subtype.preimage_coe_eq_empty

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 subtype.preimage_coe_eq_emptyView on Github →
2020-12-10 13:58
src/data/set/basic.lean
refactor(order/filter/ultrafilter): drop `filter.is_ultrafilter` (#5264) …
Added subtype.preimage_coe_eq_emptyView on Github →