inductionGen.lean:23:2-23:14: error: index in target's type is not a variable (consider using the `cases` tactic instead)
  n + 1
case cons
α : Type u_1
n : Nat
ys : Vec α (n + 1)
x : α
xs : Vec α n
h : Vec.cons x xs = ys
⊢ Vec.head (Vec.cons x xs) = Vec.head ys
inductionGen.lean:29:11-29:16: warning: declaration uses 'sorry'
case natVal
α : ExprType
a✝ : Nat
b : Expr ExprType.nat
h : Expr.natVal a✝ = b
⊢ eval (constProp (Expr.natVal a✝)) = eval b

case boolVal
α : ExprType
a✝ : Bool
b : Expr ExprType.bool
h : Expr.boolVal a✝ = b
⊢ eval (constProp (Expr.boolVal a✝)) = eval b

case eq
α α✝ : ExprType
a✝¹ a✝ : Expr α✝
 : ∀ (b : Expr α✝), a✝¹ = b → eval (constProp a✝¹) = eval b
 : ∀ (b : Expr α✝), a✝ = b → eval (constProp a✝) = eval b
b : Expr ExprType.bool
h : Expr.eq a✝¹ a✝ = b
⊢ eval (constProp (Expr.eq a✝¹ a✝)) = eval b

case add
α : ExprType
a✝¹ a✝ : Expr ExprType.nat
 : ∀ (b : Expr ExprType.nat), a✝¹ = b → eval (constProp a✝¹) = eval b
 : ∀ (b : Expr ExprType.nat), a✝ = b → eval (constProp a✝) = eval b
b : Expr ExprType.nat
h : Expr.add a✝¹ a✝ = b
⊢ eval (constProp (Expr.add a✝¹ a✝)) = eval b
inductionGen.lean:68:9-68:14: warning: declaration uses 'sorry'
inductionGen.lean:68:9-68:14: warning: declaration uses 'sorry'
inductionGen.lean:68:9-68:14: warning: declaration uses 'sorry'
inductionGen.lean:68:9-68:14: warning: declaration uses 'sorry'