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Theorem set.is_wf.union

Modification history

2022-08-25 00:16
src/order/well_founded_set.lean
refactor(order/well_founded_set): golf, review API (#11303) …
Deleted set.is_wf.unionView on Github →
2021-02-11 16:20
src/order/well_founded_set.lean
feat(order/well_founded_set) : Define when a set is well-founded with `set.is_wf` (#6113) …
Added set.is_wf.unionView on Github →