The Principle of Contingent Causation: The Impossibility of Infinite Regress.

[polymath257]

Look, its fairly straightforward:

1. A series formed by successive addition can never be an Actual Infinite.
2. The temporal series of past moments is a series formed by successive addition.
3. Therefore, the temporal series of past moments can never be an Actual Infinite.

If you want to challenge this argument, you need to show one premise is false. Which is it?

1. is only true if it starts from a finite beginning. If it already has an infinite series, successive addition keeps it infinite.

2. Not *formed*. But it *is* a series of successive addition from a possibly infinite.

3. This isn't a premise, but a conclusion. But the conclusion isn't justified because the premises aren't valid in the  case of infinite regress.