Set: pp::colors
Set: pp::unicode
Defined: f
Defined: g
Proved: T1
Defined: h
Proved: T2
theorem T2 (a b : Bool) (H : h a b) (H::1 : f b) : a := or_elim H (λ H : a, H) (λ H : b, absurd_elim a H H::1)