Theorem: IMOSL.Extra.CharTwo.add_add_cancel_middle₁ (IMOSLLean4/Extra/CharTwo/Defs.lean)

State before:
M : Type u_1
inst✝¹ : AddMonoid M
inst✝ : CharTwo M
x y : M
⊢ x + (y + x) = y
Tactic:
rw [add_comm, add_add_cancel_right]
State after:
no goals