[see also: if
The question of whether B is ever strictly larger than A remains open. [Or: The question whether]
We shall be interested in seeing whether......
Note that this lemma does not give a simple criterion for deciding whether a given topology is indeed of the form Tf.
So far it seems not to be known whether the geometric condition on X can be omitted.
We do not know whether or not Q(R)=R in this situation.
We conclude that whether a space X is an RG-space is not determined by the ring structure of C(X).
The method works irrespective of whether A or B is used.
Thus, whether or not x is in the list, one comparison is done.
The derivation D is the same whether we regard E as a derivation on X or on Y.
We consider every subset of N, whether finite or infinite, to be an increasing sequence.