In this explanation it is assumed that for every material...

In this explanation it is assumed that for every material phenomenon there is a previous time for which the possibility of the existence of the assumed phenomenon is proved, while time is one of the dimensions of material existence and does not have an existence separate from that of material existents. If the series of events had a temporal beginning, there would be no time prior to it.

With the denial that a material event can be a necessary or an impossible existent, its contingency is established, and this is an essential contingency which is abstracted from the whatness of a thing. It is not something…