55 Commits (b9b542f0ee38c98c320bc56bb419c5964152cc0f)

Author	SHA1	Message	Date
Joshua Potter	fd816a97bc	Enderton "Algebra of Sets" identities and create `Chapter_2.lean`.	2023-05-23 09:18:23 -06:00
Joshua Potter	8279131d74	Enderton, basic axioms/unions exercises.	2023-05-21 18:32:59 -06:00
Joshua Potter	1da6e31581	Enderton exercises 2.	2023-05-19 09:25:37 -06:00
Joshua Potter	ead87350b8	Enderton, Baby Set Theory.	2023-05-18 16:02:15 -06:00
Joshua Potter	ed981c3892	Add start of Enderton's "Elements of Set Theory."	2023-05-18 14:04:59 -06:00