#### Mathematical English Usage - a Dictionary

##### by Jerzy Trzeciak

## which

[*see also*: that

For which f does equality hold in this inequality?

Where there is a choice of several acceptable forms, that form is selected
which......

Let I be the family of all subalgebras which contain F. [*Or*: that
contain F; you can use either * that* or * which* in defining clauses.]

We denote the complement of A by A^{c} whenever it is clear from the
context with respect to which larger set the complement is taken.

The map f, which we know to be bounded, is also right-continuous.
[*Not*: “that we know''; do not use “that'' in non-defining clauses.]

Hence F is compact, which yields M=N. [*Not*: “what yields'']

......, which completes the proof.

[Note the difference between * what* and * which* in sentences similar to
the last two examples: * what* refers to what follows it, while * which* refers
to what precedes it.]

Back to main page