funind_errors.lean:4:7-4:26: error(lean.unknownIdentifier): Unknown identifier `doesNotExist.induct`
funind_errors.lean:22:7-22:23: error(lean.unknownIdentifier): Unknown constant `takeWhile.induct`
takeWhile.foo.induct.{u_1} {α : Type u_1} (p : α → Bool) (as : Array α) (motive : Nat → Array α → Prop)
  (case1 :
    ∀ (i : Nat) (r : Array α) (h : i < as.size),
      have a := as[i];
      p a = true → motive (i + 1) (r.push a) → motive i r)
  (case2 :
    ∀ (i : Nat) (r : Array α) (h : i < as.size),
      have a := as[i];
      ¬p a = true → motive i r)
  (case3 : ∀ (i : Nat) (r : Array α), ¬i < as.size → motive i r) (i : Nat) (r : Array α) : motive i r
funind_errors.lean:38:7-38:20: error(lean.unknownIdentifier): Unknown constant `idEven.induct`
funind_errors.lean:45:7-45:19: error(lean.unknownIdentifier): Unknown constant `idAcc.induct`