#### Mathematical English Usage - a Dictionary

##### by Jerzy Trzeciak

## namely

Here D_{0} and D_{1} are discs with the same centre, namely b.

The object of this paper is to obtain improvements in two cases, namely for forms of degree 7 and 11.

It has some basic properties in common with another most important class of
functions, namely, the continuous ones.

There is another, entirely different, way to see that A=B. Namely, one can first show that......

[Note the difference between * namely* and * that is*: while * namely* introduces specific or extra information, * that is* (or * i.e.*) introduces another way of putting what has already been said.]

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