2 Commits (a8520e74bd015b8a2ef43a22f611b6135ffcc634)

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