intro hw₁n
n d : ℕ
inst✝ : NeZero d
w w₁ : Weight n d
h : ∀ y < w₁, (fun w => normalized w → ∃ w' ∈ M n d, w' ≤ w) y
⊢ (fun w => normalized w → ∃ w' ∈ M n d, w' ≤ w) w₁
n d : ℕ
inst✝ : NeZero d
w w₁ : Weight n d
h : ∀ y < w₁, (fun w => normalized w → ∃ w' ∈ M n d, w' ≤ w) y
hw₁n : normalized w₁
⊢ ∃ w' ∈ M n d, w' ≤ w₁