{motive_6 : Lean.Meta.Grind.Arith.Cutsat.CooperSplitProof → Sort u} →
  (t : Lean.Meta.Grind.Arith.Cutsat.CooperSplitProof) →
    ((h : Lean.FVarId) → motive_6 (Lean.Meta.Grind.Arith.Cutsat.CooperSplitProof.dec h)) →
      ((hs : Array (Lean.FVarId × Lean.Meta.Grind.Arith.Cutsat.UnsatProof)) →
          (decVars : Array Lean.FVarId) → motive_6 (Lean.Meta.Grind.Arith.Cutsat.CooperSplitProof.last hs decVars)) →
        motive_6 t