We take advantage of this fact on several occasions, by not actually specifying the topology under consideration.
A model for analysing rank data obtained from several observers is proposed.
The present proof is so arranged that it applies without change to holomorphic functions of several variables. [Not: “of many variables”]
The argument is a variant of one in  and has been used several times since.
Where there is a choice of several acceptable forms, that form is selected which ......
This argument is invalid for several reasons.
There are several cases to consider: ......