Is There Only One G-D?

Question:
I accept that some sort of "Higher Being" created the universe. But why couldn't there be, many such beings? Is there any logical reason to say, that there is only one G-d?
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Answer:
The definition of G-d is: "a Being without definition." G-d cannot be defined, because if I define Him, then I limit Him. And something limited, is not G-d. By defining something, I give it borders.

If for example I define an apple as a sweet, round fruit, that is green or red; then when I find a long purple fruit, I know that it can't be an apple.

An apple is limited, to being round and red or green. That is its definition.
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G-d can't be defined, because by defining Him, you are saying, that there's something He can't be; but this can not be true, because G-d is unlimited.

That's why, there can be only one G-d. Because if you don't have a definition, then there is nothing outside of you. There can be no "other".
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An example: two neighboring countries, can only be called two countries, when there is a border in between them. But if a country has no borders, if there is no defined place where it ends and another country begins, how can you say that there are two countries?

G-d has no borders, so how can there be more than one god? Where would one god end, and one begin, if there is no dividing line between them?
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The act of creation, is the act of making borders, and drawing definitions: this is an apple and not a banana, this is land and this sea. Creation has definitions.

The Creator doesn't have a definition, that's what makes Him G-d, and that's why there can only be one