jwright82 said:What do you mean by model of rationality and how does it differ from Van Til's notion of a theory of reason?
A model of rationality is simply a model of which kinds of beliefs can be rationally warranted.
Yes but authority can be logicaly analysed to reveal that it was not authoritative at all. Meaning that these beleifs are not independent logically they require other beleifs to be true in order to justify their credulity.
They usually require other authorities to establish their non-credibility. For example, what if you had said, when you were a child, "I am not going to believe anything my parents say until they can establish their credibility"? I have a good feeling that you do not want your daughter to have this kind of attitude (I wouldn't).
If I read in a history book that George Washington crossed the Delaware, that is a basic belief. I have no reason to mistrust the source nor the information, therefore I believe it.
Is there any other way to overcome this subjectivity in your view besides a strictly de facto basis? Which by BTW assumes their model of rationality which affects what is credibule evidence or not, thus it is a presupossitional antithesis.
I can't think of a way other than arguing from that set of beliefs that results from living in the same world with the unbeliever.
I am still confused here don't they have to be functioning fine in order to aprehend that I am telling you they are malfunctioning which is a contradiction. But if they are malfunctioning than I can never tell they are because I need them to be properly functioning to communicate with you?
At least a couple of them have to be, sure. Those whose faculties are not functioning properly are known as the insane or handicapped. Of course communication is contingent on proper function---so is revelation. Again, when doing a transcendental analysis, I find that I can trust my faculties given that God is their maker (again, other basic beliefs).
as I see it, with your model it provides no check on the autonomous sensus you describe that are the ultimate authority on all things, man is the measure of all things here.
For the unbeliever yes. Not so for the believer.
If knowledge of God is dependent upon creation than God is dependent on something
This is just absurd. Of course knowledge of God is dependent upon creation so far as I am concerned---there cannot be knowledge of God without a knower and faculties of knowing. Therefore, since God is the creator of both, naturally my knowledge of God is contingent upon creation---at the very least upon my own creation.
The only thing that would destroy God's aseity epistemically, would be if He depended upon creation to know Himself---which I did not say, and which is absurd.
Also by presupossition I don't mean that they are not developed or derived from immediate beleifs, what you would call basic beleifs or common sense beleifs, only that they are the most important beleifs in a persons web of beleifs and therefore the hardest to change, and our most important beleifs affect how we recieve other beleifs.
And I would say that those presuppositions would be better called attitudes or predispositions because they are less propositional than personal. I tend to agree with Michael Polanyi that all knowledge involves personal commitment.
Again, I don't see beliefs in terms of "webs" but of architecture. Here's where I come from: in terms of epistemology there are two approaches: faith and doubt. You either begin by doubting your God-given faculties (Descartes) or you begin with faith in them (Newbigin, Reid). If I start doubting my faculties, I end by doubting the God who made them.
So that their metaphysics contradicts their epistomology leaving a huge gap in their worldview.
And that's why hardcore materialists are so hard to find these days.
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