match this with
| Or.inl (_ : p ≤ q ∧ q ≤ r) =>
  have : min p r ≤ q ∧ q ≤ max p r := min_max_from_order ‹p ≤ q ∧ q ≤ r›
  exact this
| Or.inr (_ : r ≤ q ∧ q ≤ p) =>
  have : min r p ≤ q ∧ q ≤ max r p := min_max_from_order ‹r ≤ q ∧ q ≤ p›
  have : min p r ≤ q ∧ q ≤ max p r := min_max_comm this
  exact this
ℕ ℤ ℚ : Type
inst✝¹² : Natural ℕ
inst✝¹¹ : Integer ℤ
inst✝¹⁰ : Core ℚ
inst✝⁹ : Addition ℚ
inst✝⁸ : Negation ℚ
inst✝⁷ : Subtraction ℚ
inst✝⁶ : Multiplication ℚ
inst✝⁵ : Reciprocation ℚ
inst✝⁴ : Division ℚ
inst✝³ : Sign ℚ
inst✝² : Order ℚ
inst✝¹ : MinMax ℚ
inst✝ : Metric ℚ
p q r : ℚ
x✝ : p⊣ q ⊢r
this : p ≤ q ∧ q ≤ r ∨ r ≤ q ∧ q ≤ p
⊢ Ordered.min p r ≤ q ∧ q ≤ Ordered.max p r
no goals