[see also: appear
At first glance Lemma 2 seems to yield four possible outcomes.
The result above seems not to be a consequence of previous results.
This approach does not seem to generalize to arbitrary substructures.
In our next theorem, we state a characterization of...... which does not seem to have been noticed previously.
However, it does not seem to have been observed that......
It seems likely that their results can be extended to......
It seems plausible that{......} but we have been able to establish this only in certain cases.
It seems preferable, for clarity's sake, not to present the construction at the outset in the greatest generality possible.
It may seem strange to define 0.∞=0.
There seems to be no simple formula for ......