Joshua Potter 7959c474a0 Enderton (set). Fixup the pigeonhole principle.		2023-09-16 17:54:41 -06:00
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Basic.lean	Enderton (set). Fixup the pigeonhole principle.	2023-09-16 17:54:41 -06:00
Finite.lean	Enderton (set). Fixup the pigeonhole principle.	2023-09-16 17:54:41 -06:00
Peano.lean	Enderton (set). Isomorphism from ℕ to peano systems.	2023-09-09 05:15:52 -06:00