1079.lean:4:2-6:12: error: alternative 'isFalse' has not been provided
[Meta.Tactic.simp.rewrite] h:1000:
      m
    ==>
      n
[Meta.Tactic.simp.rewrite] eq_self:1000:
      n = n
    ==>
      True
[Meta.Tactic.simp.unify] eq_self:1000, failed to unify
      ?a = ?a
    with
      Ordering.eq = Ordering.lt
[Meta.Tactic.simp.rewrite] imp_self:10000: False → False ==> True