Okay, at this point, I think you've done me a great service by moving me past an impulse to explore Frege, Descartes, and Kant to the direction of investigating Dummett, Rorty, and Quine.
I have to make adjustments in my reading list. Right now I'm still finishing up Audti's work on Epistemology, Johnson and Lakoff's embodied realism, and some introductions to the philosophy of science and mind, and I'm loathe to start swimming in the more complicated notions Rorty seems to offer until I feel like I have sea legs in the world of philosophy.
You asked me what I have been focused on, and it's those books currently balanced against Borchert's entries (I sprung for a set to annotate).
Unfortunately I'm a working stiff working on a masters in CS, not philosophy, so I'm encumbered by dealing with pedantic stuff like current computer technologies and remediating my mathematics since I only did a BS in the former and a BA in the latter.
@gonzo But I have earmarked all of your links, and when the time is right, and I've digested my current list, I'll come back and review the copious leads you have given me on these topics. I just have to get enough under my belt for a philosophical basis to write my masters thesis.
Once I satisfy that requirement, then I can attack the questions of philosophy more fully.
Oh, and regarding AGI, I think the question is a qualitative one. There have to be systems that map physical inputs (simulated or otherwise) to neurocomputational structures that are capable of generating and using semantic awareness....
Think something along the lines of neurocomputational systems (ANNs) that allow for the evolution of meanings (which are primarily unconscious explications of physical structure) and the emergence of basic symbolic logics.
My instincts tell me that the primitives of language is essentially a mereological system of mappings from neurons to neurons. Many primitive cultures don't even have proper number systems, formal logics, etc. All of the various logics arise out of some fundamental system that resembles category theory in simplicity.
Hence, the equivalences in arthimetic, ZFC, topoi, FOPC, etc. Something along the lines of ANNs -> basic conceptual systems (like metonymy and metaphor) -> category theory -> arithmetic, ZFC, topoi -> model theory, proof theory, etc.
Ultimately, semantically-aware systems have to be able to engage in the same sort of metaphysical grounding we do unconsciously before it can engage in verbal intelligence. A bonobo could never pass the Turing Test, but to discard the bonobo as not intelligent would be foolish.
In this way, intentionality precedes language, or as LW would say, language is just a game people play.