No gap of time... as in they happen at the same time? I hope you can see my issue.And I told you that with simultaneous i mean that there is not a gap of time between the cause and the effect, the definition explicitly removes the necessity of time.
... which turns the conclusion into "therefore, the universe had some number of causes."Really that’s an “objection” well feel free to reformulate premise 1
Everything that begins to exist has ether 1 cause or many causes
Not exactly useful for monotheism unless you can come up with an argument for why the universe must not have more than one cause.