Seraph, I don't know your background so I don't want to patronize you in any way. But I have to ask whether you are familiar with philosophy, and specifically Christian philosophy, as presuppostional apologetics are very heavily steeped in that, and requires an understanding of terms and definitions. This is not meant to be a personal attack in any way, just establishing where you are in terms of understanding.
Seraph wrote:When making an arguement from evidence, an intellegent person will never say "based on the evidence observed, all swans are white" because they realize that the evidence itself could be faulty and there might be a black swan out there. They will usually say "based on the evidence observed, it is most likely that all swans are white".
Sure, if your argument is an inductive argument, like most arguments are.
That is the best anyone can do when attempting to discover truth, no one can know anything with 100% absolute certainty.
Do you know that with 100% absolute certainty? It is a self-defeating statement. If you cannot know that it is 100% true, then why should anyone believe you?
Nothing you believe is necessarily true.
Hmm. I think that you may need to rethink that statement. 2+2=4? Remember that I spoke of contingent truth, like we saw in the swan example, and in all of the cases where what we observe can approach absolute truth, but never absolutely conclude it.
However, there are non-contingent truths, like the laws of logic. They are necessarily, absolutely and transcendentally true. There are three basic laws of logic which cannot be falsified: The Law of Identity, The Law of Non-Contradiction and The Law of the Excluded Middle. The fourth law is that of rationality, or logical inference, and it follows the other three.
In explanations of presuppositional apologetics, I see a lot of attempts to prove that arguements from evidence are faulty
This is not true, and in some cases we do need to rely on arguments from evidence. We just need to use the right tool for the right job. A good example is the incarnation, death and resurrection of Christ, where the preponderance of evidence shows that a man such as Jesus lived, was crucified and rose again. There is no other way to arrive at that but by relying on the evidence before us.
Each school of apologetics has its place in the Christian arsenal. The establishment of the existence of God is better done with the presuppositional method, as it gets down to the very basis of thought and reasoning, upon which everyone, including the atheist, relies. Once that is established, then classical and evidential apologetics are extremely valuable in their own right, and serves to defend the faith vigorously and effectively.
The contention is that one needs to account for one's presuppositions, i.e. worldview, first, before one can venture to trust the outcome of one's cognitive and reasoning faculties. Surely that is properly basic, and precedes any use of the assumptions in a worldview prior to contending for evidence or arguments based on it?
but I never really hear arguements for why arguements from presuppositions are not.
I'm not sure I understand your question. Like I mentioned before, the pinnacle is the impossibility of the contrary. If we go back to what I mentioned before, that there are absolute and transcendental truths, such as a the laws of logic, which can only be accounted for by a mind that is absolute and transcendental, and in no other way, then it is impossible for the opposite to be true (as per the law of non-contradiction). In the atheist worldview there is no way to account for absolute transcendental truths, so it is impossible for God not to exist.
That is not to say that the non-believer does not try to account for such, but his arguments are logically inconsistent, a little like your own self-defeating statement earlier. They cannot get away from vicious circularity when trying to account for absolute truths. They may then do as you do, and deny the existence of absolute truths, in which case no-one has any reason to believe them for statements that intend to convey absolute truth.
How may I ask, are a presuppositionalist's premises necessarily true? How do you know that they are necessarily true?
The premises in a deductive argument are taken to be so strong that it guarantees the truth of the conclusion. That essentially makes the premises necessarily true. The truth is self-evident, like we see in the laws of logic, for example.
We can see this in an example:
1. All persons are mortal
2. Seraph is a person
therefore Seraph is mortal
In the end, when discussing the existence of God, we must assume something to start with. The atheist assumes there is no God, and proceeds to develop his argument from there, just as the Christian believes there is a God and develops his argument from that worldview.
If we proceed from here, it may get a little bit more hairy as we need to then delve into ontology and epistemology.