Theorem filter.ultrafilter_iff_compl_mem_iff_not_mem
Modification history
2020-12-10 13:58
src/order/filter/ultrafilter.lean
refactor(order/filter/ultrafilter): drop `filter.is_ultrafilter` (#5264) …
Deleted filter.ultrafilter_iff_compl_mem_iff_not_memView on Github →