ad18f08
1
2
3
4
5
6
7
8
9
10
11
12
13
new E ∨ I → (I → (I → (F ∧ H → (((A → E) → G) → (((G → I) → I) → (F ∨ D) ∨ F ∧ (A ∧ B)))))) intro intro intro intro cases 3 intro intro cases 3 left left exact 4
