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Theorem is_preorder.swap

Modification history

2020-06-14 12:37
src/order/basic.lean
chore(order/basic): move unbundled order classes to `rel_classes (#3066) …
Modified is_preorder.swapView on Github →
2018-09-20 17:44
order/basic.lean
refactor(order/filter): move directed to order.basic, swap definition …
Added is_preorder.swapView on Github →