def answer : Prop := False

def answer : Set (ℝ → ℝ) := {0}

def answer : Set (ℝ × ℝ × ℝ) := {(0, 0, 0), (1, 1, 1)}

def answer : ℤ := 15

def answer : ℝ := -361

def answer : Set (ℝ × ℝ × ℝ) := {(a, b, c) | a + b = c}

def answer : Set (ℤ × ℤ) := ∅

def answer : ℂ := -1

def answer : Prop := True

def answer : Set (ℝ × ℝ × ℝ) :=
  {(0, 0, 0), (-1, -1, -1), (0, -2, -2), (-2, 0, -2), (-2, -2, 0)}

def answer : ℝ := 171.5

def answer : ℤ := 0

def answer (n : ℕ) : ℝ := n

def answer : ℕ := 36

def answer : Set ℕ := {2, 3, 7, 23}

def answer : ℤ := 2501

def answer : ℕ := 2

def answer (α : ℝ) : Set (ℝ → ℝ) := if α = -1 then {fun x ↦ x} else ∅

def answer : Set (ℕ → ℕ) := {fun _ ↦ c | c}

def answer : Set (ℤ × ℤ) := {(0, 0)}

def answer : Set (ℤ × ℤ) := {(1, 1)}