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Theorem pfilter.directed

Modification history

2021-03-30 03:44
src/order/pfilter.lean
feat(order/ideal, order/pfilter, order/prime_ideal): added `is_ideal`, `is_pfilter`, `is_prime`, `is_maximal`, `prime_pair` (#6656) …
Deleted pfilter.directedView on Github →
2021-02-18 08:05
src/order/pfilter.lean
feat(order/pfilter): add preorder filters, dual to preorder ideals (#5928) …
Added pfilter.directedView on Github →