"But do you accept that those disjunctions are true? If you do, then either p or not p must be true, where p is «Existence is a perfection» and not p is «Non-existence is a perfection»."
I said existence is a perfection. I wont repeat that
"If the proposition «the subject of all perfections does not exist» is true, and you admit that existence and non-existence are predicates, then said subject (precisely because it does not exist) must have the predicate «non existence» (non existent subjects have predicates too)."
Of course. To not exist is to not exist
"The subject of all perfections, and it follows from the definition of perfection that said predicate, since it is a perfection, must be expressed without any limits, and if that's true, then necessarily it can't also not not exist as an idea in the mind, for otherwise it would not have that perfection, meaning non existence would not be a predicate of it, which contradicts either the disjunctions or the Law of the Excluded Middle."
False on every point. The LEM has nothing to do with this. God exists only as an idea
"And since God exists as an idea, that is a fact that contradicts the idea that the subject of all perfections has the perfection of non-existence (since he does exist in that way: as an idea in the mind)."
I never said God has the perfection of non-existence but the fact that one can have a vague notion of him does not mean he exists or does not exist
Whence it follows that the assumption that non-existence is a perfection must be false. And because of the disjunction, the only possibility is that existence is a perfection, from which it follows that said subject must exist not only as an idea in the mind, but also outside the mind."
Existence is a perfection, a perfection only this world has.
"1.Do you deny that the subject of all perfections exists as an idea in the mind? If you don't, and you accept the previous premises and steps, you must also accept what you have quoted right there.
If you do, then you must hold that the subject of all perfections is inconceivable. But the fact that we (or at least I) can understand the proposition «There is a subject of all perfections» contradicts that claim. Unless you say that you don't understand that proposition, in which case this argument won't convince you.
Remember that the notion of existence (the one used in Leibniz' argument of the eternal truths, which you accepted) I mentioned implies that what exists as an idea in the mind also, in some sense, exists (with said predicate either being a perfection, or not; in the latter case whatever has that predicate only exists as an idea in the mind, but not in the former case) and the same applies, the other way around, to non-existence.
2. Again, the argument does not attempt to prove that «absolute perfection» exists, rather it attempts to prove that «the subject of all perfections» exists."
All you are SAYING is that you have the idea of God. That's not going to get it into someone else's head by the laws of logic unless you have a true argument, which you CLEARLY do not
"If you say that existence is a perfection and don't deny the disjunction, then necessarily the subject of said perfections must exist (for the reasons given above: it follows from the definitions that you have accepted and the remarks on this comment). To reject this is to reject the definitions of «perfection», «the subject of all perfections» and/or «exists»."
There is no moving "two ideas" you are using. There is one idea, that you have an idea of God. Where is the other idea
"1. If you mean that the greatest being can exist outside our thoughts, remember that what the argument asserts here is the following: IF non-existence is a perfection, then the greatest being cannot exist in any way possible. IF that's true, then obviously it can't exist outside our thoughts either."
God doesn't exist outside our thoughts within the paradigms of this discussion. Nothingness has nothing to do with the argument. You have a premise "I have an idea of God" and nothing else. Don't use that "nothing" as an argument.
"If you mean that It only cannot exist outside our thoughts but may exist in our thoughts, If it cannot exist in any way possible (If you accept 2, 3 and Modus ponens), it can't exist in our thoughts either, for then he would exist as an idea in the mind, which contradicts the definition of non-existence as a perfection, since it would then be limited and not a perfection.
And if you deny that non-existence could be a perfection while accepting the disjunctions, then you must, as I said, accept that God must have the perfection of existence, that is: He must exist."
False. Modus ponens and all forms of argument require more than one premise.
You have one premise "I have an idea of God"
"This is setting up a Reductio ad Absurdum"
There is no reduction except of your words to one premise "I have an idea of God". I don't care if you have an idea of God, I don't care FOR your idea of God, your game you have devised is boring, and your agenda is clear