intro a _
n d : ℕ
inst✝ : NeZero d
w : Weight n d
k : ℕ
⊢ ∀ x ∈ testvecs n d,
    Weight.sum w * d / (n + 1) + 1 - pair w x ≤ Nat.succ k * Weight.sum w * d / (n + 1) + 1 - Nat.succ k * pair w x
n d : ℕ
inst✝ : NeZero d
w : Weight n d
k : ℕ
a : Weight n d
h✝ : a ∈ testvecs n d
⊢ Weight.sum w * d / (n + 1) + 1 - pair w a ≤ Nat.succ k * Weight.sum w * d / (n + 1) + 1 - Nat.succ k * pair w a