{"version": 1,
 "uri": "file:///5659.lean",
 "diagnostics":
 [{"source": "Lean 4",
   "severity": 1,
   "range":
   {"start": {"line": 7, "character": 17}, "end": {"line": 7, "character": 18}},
   "message":
   "Tactic `introN` failed: There are no additional binders or `let` bindings in the goal to introduce\n\nn : Nat\nhn : n < 0\n⊢ False",
   "fullRange":
   {"start": {"line": 7, "character": 17},
    "end": {"line": 7, "character": 18}}},
  {"source": "Lean 4",
   "severity": 1,
   "range":
   {"start": {"line": 11, "character": 16},
    "end": {"line": 11, "character": 17}},
   "message":
   "Tactic `introN` failed: There are no additional binders or `let` bindings in the goal to introduce\n\nn : Nat\nhn : n < 0\n⊢ False",
   "fullRange":
   {"start": {"line": 11, "character": 16},
    "end": {"line": 11, "character": 17}}}]}