case mk
Γ : Type u_1
inst✝ : Inhabited Γ
head✝ : Γ
left✝ right✝ : ListBlank Γ
⊢ move Dir.left (move Dir.right { head := head✝, left := left✝, right := right✝ }) =
    { head := head✝, left := left✝, right := right✝ }
Γ : Type u_1
inst✝ : Inhabited Γ
T : Tape Γ
⊢ move Dir.left (move Dir.right T) = T
cases T
no goals
case mk
Γ : Type u_1
inst✝ : Inhabited Γ
head✝ : Γ
left✝ right✝ : ListBlank Γ
⊢ move Dir.left (move Dir.right { head := head✝, left := left✝, right := right✝ }) =
    { head := head✝, left := left✝, right := right✝ }
simp [Tape.move]