Theorem: MyGroup.left_inv_eq_right_inv (IIScExperiments/GroupTheory.lean)

State before:
G : Type
inst✝ : MyGroup G
a✝ b✝ c✝ a b c : G
h1 : b * a = 1
h2 : a * c = 1
⊢ b = c
Tactic:
sorry
State after:
no goals