∀ {fvarId : Lean.FVarId} {stx : Lean.Term} {parentStructName parentFieldName : Lean.Name} {fvarId_1 : Lean.FVarId}
  {stx_1 : Lean.Term} {parentStructName_1 parentFieldName_1 : Lean.Name},
  Lean.Elab.Term.StructInst.ExpandedFieldVal.proj✝ fvarId stx parentStructName parentFieldName =
      Lean.Elab.Term.StructInst.ExpandedFieldVal.proj✝¹ fvarId_1 stx_1 parentStructName_1 parentFieldName_1 →
    fvarId = fvarId_1 ∧ stx = stx_1 ∧ parentStructName = parentStructName_1 ∧ parentFieldName = parentFieldName_1