IF KNOWLEDGE THEN GOD: THE EPISTEMOLOGICAL THEISTIC ARGUMENTS OF PLANTINGA AND VAN TIL James Anderson Abstract The two Christian philosophers Alvin Plantinga and Cornelius Van Til have much in common in terms of their religious upbringing, their education, their approach to Christian philosophy, and their work on the relationship between epistemology and metaphysics. In particular, both have claimed that the existence of God is in some weighty sense a precondition of human knowledge. In this paper, I review and compare a selection of epistemological theistic arguments inspired by their writings — three from Plantinga and four from Van Til — and through drawing attention to significant points of similarity and difference suggest some ways in which such arguments might be further developed with an eye to insights gleaned from these two thinkers.

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Do Christians use circular reasoning when they presuppose that God exists? Is circular reasoning a logical fallacy? Darius and Karin Viet explain.

Hi AiG,

My question is regarding presuppositional apologetics. I’ve read the article at this link http://www.answersingenesis.org/articles/am/v2/n4/presuppositional-apologetics and I whole heartedly agree with what it teaches. I know that I’m not a strong debater and so I need to anchor myself to God’s word to have a hope at defending our faith.

However, in a recent discussion with a non-Christian, where I was using presuppositional apologetics, I was accused of using circular reasoning to argue my case. He claims that it is invalid to assume God exists to argue that God exists. On the surface, this seems to make sense. But I still firmly believe that it’s valid to presuppose that God exists.

How should I respond to his claims that my arguments are invalid due to circular reasoning?

Btw: Thank you. Your ministry has greatly encouraged and strengthened my faith.

God bless you.

V.

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Douglas Wilson, John M. Frame and James N. Anderson answer the typical refutation of presuppositional apologetics that it is circular reasoning and begging the question.

 

 

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The Gospel Coalition is running a series on methods in apologetics. The latest installment is “Questioning Presuppositionalism” by Dr. Paul Copan, who raises four criticisms of presuppositionalism, one of which is the old canard that presuppositionalists engage in fallacious circular reasoning. (I think all four are misguided in one way or another, but the other three will have to wait for now.) He writes:

First, it engages in question-begging — assuming what one wants to prove. It begins with the assumption that God exists, and then concludes that God exists. Such reasoning would get you an “F” in any logic class worthy of the name!

Dr. Copan is a gentleman and a scholar, so I’m sure he doesn’t realize quite how insulting this sounds to presuppositionalists! (For comparison, imagine someone claiming that evidentialists commit the fallacy of affirming the consequent because they use inductive inferences.) This criticism has been answered many times, so it’s disappointing to find it cropping up yet again (although perhaps presuppositionalists should take comfort from the fact that Dr. Copan doesn’t offer any new criticisms!). Even so, I’ll try to explain one more time why this complaint so badly misses the mark.

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