case false => {
  rw[OpM_toTopM_denoteRegion]; simp[TopM.denoteRegionsByIx]; }
r₁ r₂ : Region scf
⊢ run (OpM.toTopM [TopM.scoped ∘ denoteRegion scf r₁, TopM.scoped ∘ denoteRegion scf r₂] (OpM.denoteRegion r₂ 1 []))
      (SSAEnv.set (SSAVal.SSAVal "b") MLIRType.i1 0 SSAEnv.empty) =
    run (TopM.scoped (denoteRegion scf r₂ [])) (SSAEnv.set (SSAVal.SSAVal "b") MLIRType.i1 0 SSAEnv.empty)
no goals