Both theories apply equally to issues of law and fact.

How, you might ask, does this theory of mine apply to the case in point?

In fact, that theory applies to every person at the market.

Q. How does your theory apply to people who are not ill?

His new theory applies only to the other two traditions.

The theory will not apply to the vast majority of officials.

This theory does not apply to the development of female homosexuality.

The first theory applied only to observations made by someone moving at a constant speed.

This means that the theory and recommendations does not apply to the new situation.

But surely this theory can scarcely apply to the present situation in Europe.