rw [‹∀ m, 2*m &&& 1 = 0›]
n : Nat
this✝¹ : 2 * succ n - 1 = 2 * (succ n - 1) + 1
k l : Nat
this✝ : ∀ (m : Nat), 2 * m &&& 1 = 0
this : 2 * l + 1 = 2 * l ^^^ 1
⊢ 2 * k &&& 2 * l ^^^ 2 * k &&& 1 = 2 * k &&& 2 * l ^^^ 0
no goals