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Def roption.get_or_else

Modification history

2021-08-09 11:59
src/data/pfun.lean
chore(data/pfun): rename `roption` to `part`, split `data.part` off `data.pfun` (#8544)
Deleted roption.get_or_elseView on Github →
2018-12-17 15:19
data/pfun.lean
feat(data/nat/enat): extended natural numbers (#522)
Added roption.get_or_elseView on Github →