An abstractive set which satisfies this condition is thus an abstractive set composed wholly of durations.
Accordingly an event-particle could cover no other abstractive element.
According to my own theory it only differentiates itself from time at a somewhat developed stage of the abstractive process.
Let σ be the name of any condition which some abstractive sets fulfil.
It is evident that—with this meaning of σ—every abstractive set equal to a σ-prime is itself a σ-prime.
There are classes of these abstractive elements which are of great importance.
A station can also be defined in the character of an abstractive element.
The book contains an intellectualist, static, determinist, abstractive trend.
Then the group of all the σ-primes is the abstractive element which is associated with the given solid.
Thus an abstractive set is effectively the entity meant when we consider an instant of time without temporal extension.