It is impossible to reason accurately in the vague concerning objects and their positions without keeping these distinctions in view.
An object is located in an abstractive element, when an abstractive set belonging to that element can be found such that each event belonging to that set is a situation of the object.

It will be remembered that an abstractive element is a certain group of abstractive sets, and that each abstractive set is a set of events.

This definition defines the location of an element in any type of abstractive element.

In this sense we can talk of the existence of an object at an instant, meaning thereby its location in some definite moment.

It may also be located in some spatial element of the instantaneous space of that moment.
A quantity can be said to be located in an abstractive element when an abstractive set belonging to the element can be found such that the quantitative expressions of the corresponding characters of its events converge to the measure of the given quantity as a limit when we pass along the abstractive set towards its converging end.
By these definitions location in elements of instantaneous spaces is defined.