levels

2023-02-08 10:33:45 +01:00
parent ad50fb986d
commit 07b140acf7
8 changed files with 61 additions and 28 deletions
@@ -24,14 +24,16 @@ Statement
    (n : ℕ) : ∃! (n : ℕ), Nat.Prime n ∧ Even n := by
  use (2 : ℕ)
  constructor
-  simp only [true_and]
-  use 1
+  simp only []
  intro y
  rintro ⟨h₁, h₂⟩
  rw [← Nat.Prime.even_iff]
  assumption
  assumption

+example : True := by
+  by_cases h : 1 = 0
+
 Conclusion ""

 Tactics