It does not refer to Adam's knowledge of those names.

It does not refer to Adam's knowledge of those names. The angels were unaware of even the existence of these "names"; it was not that they knew about the names but were not sure whether Adam knew them or not. Had the angels been doubtful only about Adam's knowledge of the names, it would have been enough to tell Adam to inform the angels of the names in order that they would have known that Adam knew. Instead, Allâh first asked them to…