Registration was sought on the mistaken assumption that this would make any such move impossible.

There may also be a mistaken assumption that encouraging creativity in schools necessarily involve the arts when it also can be encouraged in other subjects.

This apparent paradox results from the mistaken assumption of absolute simultaneity.

Because of the above mistaken assumption, some media outlets reported at 7:00 p.m.

When you think of all the other factors probably at work - hubris, bad advice, mistaken assumptions, greed - a bit of casual cinq à sept would seem an unlikely culprit.