Copernicus
Industrial Strength Linguist
Here is an argument against belief in gods: Since humanity is predisposed to invent false gods, any particular human-worshiped god is likely to be a false god. But I'll just confine the chain of reasoning to the Abrahamic (Christian/Jewish/Islamic) God. I've broken it down into 11 steps for easier reference. Bear in mind that this is not a proof that God cannot exist, but that he likely does not exist.
1) God is a true god or a false god. (law of the excluded middle)
2) False gods do not exist. (by definition)
3) Since false gods do not exist, belief in them only spreads by tradition from a local point of origin. (from our knowledge of the world)
4) God wants people to believe in his existence. (general religious belief)
5) If God exists and wants people to believe in his existence, he will act to support credible belief in his existence. (based on the observation that he has allegedly done so through revelation)
6) God could have a reason for appearing not to act to support credible belief in his existence. (for the sake of argument)
7) Belief in God has spread only by tradition from a local point of origin. (from our knowledge of the world)
8) God appears not to have acted to support credible belief in his existence.
9) Either God does not exist or he has a good reason to have made the spread of his religion look similar to the spread of a false religion.
10) God appears not to have a good reason for making the spread of his religion look similar to the spread of a false religion. (Nobody able to think of a good reason)
11) Therefore, God probably is a false god.
1) God is a true god or a false god. (law of the excluded middle)
2) False gods do not exist. (by definition)
3) Since false gods do not exist, belief in them only spreads by tradition from a local point of origin. (from our knowledge of the world)
4) God wants people to believe in his existence. (general religious belief)
5) If God exists and wants people to believe in his existence, he will act to support credible belief in his existence. (based on the observation that he has allegedly done so through revelation)
6) God could have a reason for appearing not to act to support credible belief in his existence. (for the sake of argument)
7) Belief in God has spread only by tradition from a local point of origin. (from our knowledge of the world)
8) God appears not to have acted to support credible belief in his existence.
9) Either God does not exist or he has a good reason to have made the spread of his religion look similar to the spread of a false religion.
10) God appears not to have a good reason for making the spread of his religion look similar to the spread of a false religion. (Nobody able to think of a good reason)
11) Therefore, God probably is a false god.