This appeal seeks review by us of an order of the trial court remanding this case to state court on the ground that it was removed “improvidently and without jurisdiction,” essentially on the ground that appellant did not receive notice of the motion to remand and had no opportunity to oppose it. Assuming that this is true (as it appears to be), it remains that such orders as that of the trial court — orders which recite the magic words that we quote above — are “not subject to challenge in the court of appeals by appeal, by mandamus, or otherwise.” Thermtron Products, Inc. v. Hermansdorfer, 423 U.S. 336, 343, 96 S.Ct. 584, 589, 46 L.Ed.2d (1976).1

The Thermtron court does not say that we cannot review orders purporting to remand on this basis on certain grounds, or for certain faults; for constitutional infirmities, but not for statutory ones: it says that we cannot review them at all. There it ends.

AFFIRMED.