(motive : Option Lean.Meta.Sym.Simp.Theorem → Sort u_1) →
  (x : Option Lean.Meta.Sym.Simp.Theorem) →
    ((thm : Lean.Meta.Sym.Simp.Theorem) → motive (some thm)) →
      ((x : Option Lean.Meta.Sym.Simp.Theorem) → motive x) → motive x