Joshua Potter 7fe780e72f Drop `Common.Set.Interval` and `Common.Set.Partition`.		2023-07-25 07:28:20 -06:00
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Basic.lean	Enderton. Peano postulate theorem/exercise drafts.	2023-07-23 12:13:24 -06:00
Peano.lean	Enderton. Peano systems.	2023-07-21 14:25:36 -06:00