(motive : Option Lean.IR.ExplicitRC.DerivedValInfo → Sort u_1) →
  (x : Option Lean.IR.ExplicitRC.DerivedValInfo) →
    ((info : Lean.IR.ExplicitRC.DerivedValInfo) → motive (some info)) →
      ((x : Option Lean.IR.ExplicitRC.DerivedValInfo) → motive x) → motive x