exact one_le_E _
case pos
n d : ℕ
inst✝ : NeZero d
w : Weight n d
hE : E (trunc w) = E w
k : Fin (Nat.succ n)
hk : w k = 0
w' : Weight n d := Function.update (trunc w) k 1
j✝ : Fin (Nat.succ n)
hj : E w < w j✝
hsum' : Weight.sum w' = Weight.sum (trunc w) + 1
hE' : E w' = E (trunc w)
j : Fin (Nat.succ n)
h✝ : j = k
⊢ 1 ≤ E (trunc w)
no goals