A space is semiregular if the regular open sets form a base.

In that time, a whole other set of critical opinions has formed.

The point is that the set of all those movements, with composition as operation, forms a group.

The set of ridge points form curves on the surface called ridges.

The set of all elliptic functions which share some two periods form a field.

In other words, this single set forms a local base at x.

The two sets of picture cards form pairs by matching their numbers.

Otherwise, the set of marked edges form at least one cycle.

A set of clear political guidelines should form part of this strategy.

The set of ends can then be topologized in a natural way and forms a circle.