exact hcorrect₀ x hlo
case inr
n x : ℕ
round : ℕ → ℕ
npos : 0 < n
hcorrect₀ : correct₀ n round
hlo : round x = trunc n x
no_uflow : x ≥ 2 ^ n
h1 : x ≤ next n (trunc n x)
h2 : trunc n x ≤ x
⊢ x - trunc n x ≤ next n (trunc n x) - x
no goals