Hi, and thanks for accepting.
Arguments:
I.
1. God A exists and God B exists
2. God A exists and God B doesnt exist
3. God A doesnt exist and God B exists
4. God A and God B dont exist
If two Gods are possible, we end up with probability where only 1 out of 4 options favor atheism. If we increase number of possible Gods to 10000, then atheism is only true 1 in 10000 times. Since number of Gods can be infinite, atheism's probability is 1 in infinite.
II.
P1. God is an explanation for logic (A=A)
P2. Atheism has no expanation for logic (A=A).
C1. Logic can be proved and explained by God, while logic of atheist world cannot be proved.
C2. Any logic atheist uses is to be considered unproved.
P1 is true because God with all powers to create everything can create everything which exists, including logic. Correct by definition. P2 is true because logic cannot be explained by logic, and atheist has no explanation outside logic either. So C1 and C2 follow logically. Because God is above logic in power, there is nothing which can logically prevent God from existing or creating himself. So no logic atheist uses can disprove or even question God, and existence of logic itself is dependent upon God, thus mere use of logic assumes existence of God.
III.
P1. God is a maximally great all powerful being
P2. If maximally great being exists in one world, such being exists in all worlds.
P3. Maximally great being exists in mind, so it exists in one world
C. Maximally great being exists in all worlds
P1, P2 are true by definition. P3 is true, maximally great being exists in the mind and can be imagined. C logically follows. God can be proved to exist in imagination, he cannot be proved to not exist in any possible place. So opposite of ontological doesnt work.
P1. God is a maximally great all powerful being
P2. If maximally great being exists in one possible world, such being exists in all possible worlds.
P3. Maximally great being exists in possible world
C. God exists in all possible worlds.
Because God exists in possible version of this world, and no possible version of this world can contradict God's existence, we can conclude God exists in a possible world. Opposite doesnt work here. If we assume there is a condition in possible world which prevents God from existing, we would assume that such condition is above God in power, which is impossible by definition of God having maximum power. By logic, either God is possible or God isnt possible. No 3rd option exists, and two options are mutually exclusive. Possible means there is no known contradiction to God's existence. So with lack of any known contradiction in real world to God's existence, God is possible by definition, thus he exists in one possible world. And C follows.
IV.
P1. God explains why world exists as it is
P2. Lack of God cannot explain why world is as it is, and why world isnt different.
C. Only God explains the world.
P1 is true, world is as it is because God's will designed it that way. P2 is true, lack of God cannot provide any explanation for world and its laws and design being as it is. So C follows, God is the only existing explanation.
Dependent things cannot go back infinitely, and even infinite chain of dependents is still itself dependent. So a necessary being must exist to design things dependent on it to design it.
God with all powers to create everything can create everything which exists, and only something with power to create everything which exists can create everything which exists. Only all powerful being which can create everything can account for creation of everything.
V.
P1. Only omniscience is complete truth
P2. God is omniscient
P3. Saying that omniscience doesnt exist is logically impossible position to defend
C1. God can never be considered to not exist
C2. God can only be considered to exist.
P1 and P2 are true by definition. P3 is true by tautology, because it takes omniscience to claim that omniscience doesnt exist, a logical contradiction. If person claimed that omniscience doesnt exist, but did so from a position of lack of omniscience, person wouldnt have complete truth, so person's claim would be based on incomplete truth, thus unproved, because the knowledge person lacks could be the knowledge which disproves such position. So omniscience can never be claimed to not exist, as that is a logical contradiction. So C follows, it is not possible to defend position that omniscience doesnt exist. So the only position left is that omniscience can be considered possible to exist, and never impossible.
Such argument serves to support possibility of God, and also to prove that position "God doesnt exist" is impossible to hold by anyone ever and can never be considered logically true, while position "God exists" can be logically considered true by God. Claiming that omniscience doesnt exist is equal to saying that whole truth doesnt exist, a self defeating position which cannot be true because it denies truth.