by arguing that while theists cannot prove that god exists, atheists also cannot prove that god does not exist.
This is used as a basis for arguing that there is no objective means for determining which is preferable because neither has a logical or empirical advantage over the other. Thus, the only reason for going with one or the other is faith and then, presumably, the theist will argue that their faith is somehow better than the atheist’s faith.
This claim relies upon the erroneous assumption that all propositions are created equal and, because some cannot be conclusively proven, then therefore none can be conclusively disproven.
So, it is argued, the proposition “God exists” cannot be disproven.
But not all propositions are created equal. It is true that some cannot be disproven — for example, the claim “a black swan exists” cannot be disproven. To do so would require examining every spot in the universe to make sure that such a swan did not exist, and that simply isn’t possible
2006-08-05
09:57:43
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5 answers
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Other propositions, however, can be disproven — and conclusively. There are two ways to do this. The first is to see if the proposition leads to a logical contradiction; if so, then the proposition must be false. Examples of this would be “a married bachelor exists” or “a square circle exists.” Both of these propositions entail logical contradictions — pointing this out is the same as disproving them.
If someone claims the existence of a god, the existence of which entails logical contradictions, then that god can be disproven the same way. Many atheological arguments do exactly that — for example they argue that an omnipotent and omniscient god cannot exist because those qualities lead to logical contradictions.
2006-08-05
10:00:46 ·
update #1
The second way to disprove a proposition is a bit more complicated. Consider the following two propositions:
2006-08-05
10:01:55 ·
update #2
1. Our solar system has a tenth planet.
2. Our solar system has a tenth planet with a mass of X and an orbit of Y.
Both propositions can be proven, but there is a difference when it comes to disproving them. The first could be disproven if someone were to examine all of the space between the sun and the outer limits of our solar system and found no new planets — but such a process is beyond our technology. So, for all practical purposes, it is not disprovable.
The second proposition, however, is disprovable with current technology. Knowing the specific information of mass and orbit, we can devise tests to determine if such an object exists — in other words, the claim is testable. If the tests repeatedly fail, then we can reasonably conclude that the object does not exist. For all intents and purposes, the proposition it disproven. This would not mean that no tenth planet exists. Instead, it means that this particular tenth planet, with this mass and this orbit, does not exist.
2006-08-05
10:02:20 ·
update #3