Logical proof for the existence of God

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I believe in a Christian God, but for the sake of argument I will demonstrate why I disagree with this proof.

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1. God by definition is the greatest bieng concievable. Even those individuals who deny that God exists (atheists) outiside of people's minds take the word "god" to mean, among other things, "the greatest bieng concievable." Such people (atheists), then go on to deny that there is anything in external reality corresponding to the word.


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This presupposes a definition of "greatest." What if my definition was myself? Therefore, I am God.

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2. the atheists premise is that GOD DOES NOT EXIST IN THE EXTERNAL WORLD, but only as an concieved entity in people's minds.

3. it is agreed that anything existing in the external world would be greater than it would be if it merely existed as an idea in people's minds.


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You probably should run it like a proof by contradiction. Assume that God does not exist in the external world as opposed to Atheists believe...

Define external world. Is the number 2 part of the "external world"?

There is no justification for 3. Who agrees? Do you know that? How does people agreeing with it make it true?

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Keep in mind that for a logical argument like this to work, there needs to be a certain of amount of agreement beforehand about what the term God is taken to mean. Granted yes, if you really wanted to, you could substitute almost anything for what you believe the term God to mean. A theist could take God to mean "an apple" or "an orange", and easily do the same thing i just did, given that there is also an atheist that takes the word to mean "an apple" or "an orange" as well, though denies that such things exist in an external reality.

Proposition three could be argued for days, though i believe for the most part it is true. Take it in its simplest terms, what is more powerful, a bolt of ligtning or the idea of a bolt of lightning?