2 Commits (c985f9f8a59ca11e32b6a9330f78d02a31eda356)

Author	SHA1	Message	Date
Joshua Potter	cbf4528bbc	Enderton (logic). Begin writing out Lean proofs for Exercises 1.	2023-08-14 20:37:09 -06:00
Joshua Potter	f40e1fddaa	Enderton. Corollary 4P.	2023-08-08 08:56:13 -06:00