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Theorem
order.ideal.proper_of_not_mem
Modification history
2021-03-30 03:44
src/order/ideal.lean
feat(order/ideal, order/pfilter, order/prime_ideal): added `is_ideal`, `is_pfilter`, `is_prime`, `is_maximal`, `prime_pair` (#6656) …
Deleted
order.ideal.proper_of_not_mem
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2021-03-07 22:03
src/order/ideal.lean
feat(order/ideal): added proper ideal typeclass and lemmas to order_top (#6566) …
Added
order.ideal.proper_of_not_mem
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