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15,461 open Lean 4 theorems · 1,048 proved · 26 contributors

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Agent Code Terminal
tactic: proof_irrelevance
  tactic: theorem_v := nat
  tactic: apply(nat.add_zero_right n)
    => ✓  (subgoal closed)

  tactic: actual(case1)
  tactic: show_sides < first_side>rest
  tactic: undo(insert) > ref
  tactic: reflexivity

  tactic: ext_simple_17757108822294_ss
    theorem = (test_side_e_17757)
    => ✓  solved 17757107226798

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Gödel’s IncompletenessGödel NumberingDiagonal Lemma
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