Here is a valid non-deductive argument:
- There are some evils whose best explanation involves an evil supernatural agent. (Premise)
- Therefore, there is an evil supernatural agent, call him S. (By (1), ampliatively)
- If there is a necessarily existing first cause of everything else, it is not an evil agent. (Premise)
- There is a necessarily existing first cause of everything else. (Premise)
- S is not the necessarily existing first cause of everything else. (By (2) and (3))
- There is a necessarily existing first cause of everything who is a cause of S. (By (4) and (5))
- The cause of a supernatural being is supernatural. (Premise)
- There is a necessarily existing supernatural first cause of everything. (By (6) and (7))
I bet there are other interesting theistic arguments starting with (2). One might, for instance, be able to argue that an evil agent cannot be simple and unchangeable, and an agent who is not simple and unchangeable must have a cause, and go on from there.
I do not see how (6) follows from (4) and (5). Why cannot S be necessarily existing himself? That is, how have we ruled out Manichaeanism here?
ReplyDelete6 follows from 4 and 5 as follows. Let x be the necessarily existing cause of everything else (by 4). If x is not the cause of S, then x=S. But x is not S by 5. Hence, x is the cause of S.
ReplyDeleteI think you're trying to see more in the argument than is there. It's a very modest argument, establishing very little. If S is necessarily existing, still by 4 and 5 he needs a cause. If you think necessarily existing beings can't have causes, then 4 and 5 yield the claim that S is not necessarily.
How do you get from (1) to (2), or does (2) just come from the meaning of "best" in (1)?
ReplyDeleteTom:
ReplyDeleteIt's reasonable to believe the best explanation.
The argument is non-deductive.
What happens if S didn't have the property of being supernatural when the first cause created him, but acquired this property later? I think you need to add either that S is essentially supernatural or that only a supernatural being can cause another being to become supernatural.
ReplyDelete