#### Mathematical English Usage - a Dictionary

##### by Jerzy Trzeciak

## valid

[*see also*: correct, true, hold

Theorems 3 and 6 of [2], with the appropriate changes, are also valid.

The statement of Theorem 5 remains valid if we replace “f is compact'' by
“the norm of f is bounded''.

However, as observed in [5], the proof given in [7] is equally valid for regular sets.

This argument is invalid for several reasons.

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