1079.lean:3:2-6:12: 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