#### Mathematical English Usage - a Dictionary

##### by Jerzy Trzeciak

## single

[*see also*: individual, particular, specific, unique, only

**1**

This will be proved by showing that H has but a single orbit
on M.

Each row of A has a single ± 1 and the rest of the
entries 0.

The two examples, E_{1} and E_{2}, differ by only a single sequence,
e, and they serve to illustrate the delicate nature of Theorem 2.

Can E consist of a single point?

**2**

With this definition of a tree, no vertex is singled out as
the root.

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