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Theism and Explanation - Appeared-to-Blogly

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50 <strong>Theism</strong> <strong>and</strong> <strong>Explanation</strong><br />

literally. They say, for instance, that God is a “person” who “knows” things<br />

<strong>and</strong> can “bring about” states of affairs. 70 If such propositions are in fact<br />

coherent, it can only be because such language is being used analogically.<br />

But precisely because such language is being used analogically, we cannot<br />

directly demonstrate its internal coherence, since we cannot specify exactly<br />

what it does <strong>and</strong> does not mean. This might appear <strong>to</strong> constitute a fatal<br />

objection <strong>to</strong> a theistic hypothesis: if we cannot demonstrate its coherence,<br />

why should we accept it? Swinburne’s response is that we can establish<br />

the coherence of theism indirectly, by showing that there is good reason <strong>to</strong><br />

believe that there exists a God who has these apparently incompatible properties.<br />

71 And, of course, Swinburne has devoted much of his life <strong>to</strong> arguing<br />

for the existence of the Christian God.<br />

Does this offer the theist a way out? Well, perhaps the charge of incoherence<br />

is not fatal (3.3.4), but Swinburne underestimates its seriousness. I<br />

shall argue later that Swinburne’s arguments for the existence of God are<br />

best thought of as abductive arguments (6.1.3). But if someone is offering<br />

an abductive argument, then it seems vital that his hypothesis be consistent.<br />

The reason is simple, <strong>and</strong> will become clear if we call <strong>to</strong> mind Peirce’s<br />

schema for abductive reasoning (2.1.2).<br />

(1) The surprising fact, E, is observed.<br />

(2) But if H were true, E would be a matter of course,<br />

(3) Hence, there is reason <strong>to</strong> suspect that H is true.<br />

A potential explanation, I argued, is one that satisfi es the second premise<br />

of this schema. The key question in each case is: What would follow, if H<br />

were true? But it is a well-known principle of at least classical logic that<br />

from a contradiction anything follows: ex contradictione quodlibet, in its<br />

traditional Latin formulation. 72 Let’s say, for the sake of the argument, that<br />

the theistic hypothesis (H) does embody a contradiction. (If this were true,<br />

we could easily be unaware of it, especially if the language we are using is<br />

being used analogically.) Let’s say, for instance, that God simply could not<br />

be both perfectly just <strong>and</strong> perfectly merciful, but that our theistic hypothesis<br />

attributes both qualities <strong>to</strong> him. Then whatever the explan<strong>and</strong>um is, we<br />

could derive from H a proposition describing it. For the same reason, we<br />

could apparently corroborate H by appealing <strong>to</strong> any fact whatever. 73 But this<br />

is equivalent <strong>to</strong> saying that a self-contradic<strong>to</strong>ry hypothesis could never be an<br />

acceptable explanation. While we have reason <strong>to</strong> doubt the consistency of<br />

the theistic hypothesis, we have reason <strong>to</strong> treat it with some suspicion.<br />

3.3.4 The Consistency Requirement<br />

It follows that we should not underestimate the seriousness of the charge<br />

of internal incoherence. But neither should we overestimate it, for it may<br />

not be a fatal objection. Are there circumstances in which we would be

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