Existence exists - because science explores existence
Law of identity - because science explores the properties of various things in existence.
Laws of non-contradiction and excluded middle - because we need falsifiablility in order to establish truth
I don´t agree that "the laws of logic" are axiomatic claims. As I said, they aren´t claims about reality - they are inevitable rules without which binary language can´t produce meaningful results (except when it´s about poetry and such). They govern the formal, binary system language - nothing else.
I find it, however a bit odd to single out science as using this formal system. Everybody does, once they start engaging in binary speaking (and thinking); and there´s no alternative to it.
If somebody wants their claims to be excepted from that, all I need to do is asking for the same privilege for my claims, and they will see the problem. It´s almost as if someone wants to remove the goals in the midst of a soccer game.
[For me, however, this raises a totally different issue: I don´t believe that binary thinking (which comes so natural to us because we are taught to think via language) is doing reality justice. The problem, though: It´s impossible to communicate analog thinking in the formal binary system language, so I won´t even try. So, to summarize: If I want to communicate meaningfully in the formal system language, I need to accept the rules of logic for that task.]
As to "existence exists": Sorry to be blunt, but I think that this statement is complete nonsense. It creates a category error (a category is included in itself), and this will inevitable run us into problems. Laws of logic....

Of course, I know what you mean ("something exists - whatever it is"). But again, this isn´t an axiom exclusive to science. It´s quasi inevitable for everyone. Of course, we can just take the alternative "nothing exists" and see what happens.
It's always seemed curious to me that after a couple thousand years of philosophy we arrive at methodological naturalism and the scientific method, but in order to have a methodology that doesn't accept unfalsifiable claims we first have to accept some unfalsifiable claims. I don't claim to be a philosopher, but am I the only one that sees the irony here?
I don´t know, but I for one don´t see any irony whatsoever here.
The first problem here seems to me that you (as pointed out above) still equivocate "unfalsifiable claims". A
method needs formal rules, by definition. There is no point in calling those rules "unfalsifiable claims" (and then try to make it look like they were the same as unfalsifiable claims about reality). They provide a frame of reference (and the accuracy of the resulting insights doesn´t and can´t transcend this frame of reference. The idea that science or philosophy can go without such frames of references is absurd. The question is: Are they open about them?
So, on the one hand we have science, which
- has a consistent method
- is explicit about its frame of reference
- has a method that gets us very far within this frame of reference.
On the other hand we have a metaphysical idea (unfalsifiable claim) that has nothing like that. It has no method; while being clear that it doesn´t accept the scientific frame of reference and claims to be about a bigger one, it is unable/unwilling to define that frame of reference (except ex negativo). It has no consistent terminology, doesn´t provide any formal system of exploration, and btw. relies on the 3 "axioms" you have listed above just like science does.
So this is no comparison at all, and simply pointing to the fact that science relies on logic just like everybody else, and therefore the scientific method and wild metaphysical claims are on equal footing, strikes me as a tad intellectually dishonest.
No, I don't think a reliable method for evaluation unfalsifiable assertions can exist.
We agree, that´s actually implicit in the definition of "unfalsifiable". Then let´s not equate the scientific method and unfalsifiable metaphysical claims, just on grounds of both accepting logic as necessary for communication.
Well philosophers have been paying attention to them for thousands of years, so I guess there is reason enough for some, even if we can't ultimately say anything about their truth or falsehood.
That´s not a good reason for me.
