simp[Matrix.comp_vecCons']
f : ℕ → ℕ → ℕ
hf : Arith₁ fun v => f (v.get 0) (v.get 1)
n : ℕ
g h : Vector ℕ n → ℕ
hg : Arith₁ g
hh : Arith₁ h
i : Vector ℕ n
⊢ f ((ofFn fun i_1 => ![g, h] i_1 i).get 0) ((ofFn fun i_1 => ![g, h] i_1 i).get 1) = f (g i) (h i)
no goals