Mathematical English Usage - a Glossary

by Jerzy Trzeciak

define

[see also: declare, let, set]

To define Pn+1 from Pn, we let......

We define a <the> function f by <by setting> f=......

We define the set T to consist of those f for which......

Now M is defined to be the set of all sums of the form......

Here F is only defined up to an additive constant.

Here u+ and u- are the positive and negative parts of u, as defined in Section 5.

As defined in Section 1, these are structures of the form......

The function f so defined satisfies......

The notion of backward complete is defined analogously by exchanging the roles of f and f-1.

The other two defining properties of a σ-algebra are verified in the same manner.


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