:Actually, I want to comment on my own post here.  After thinking about it over the weekend, I think the last Column and Row (concerning irrelevancy) doesn't really fit.  The breakdown is between beliefs in Metaphysics (along the top) and beliefs in Epistemology (along the left side).  The irrelevancy column is more like a statement of WHY, and not WHAT.  For example, I could have no beliefs in god BECAUSE I think they are irrelevant  but I belong in the third column, not the 4th.  Further, the "known" part of the left column is superfluous, because it is a breakdown of epistemology (what is possible to know), not of current knowledge (what is known).  I will change the table to reflect how I think it should look now...  
 :I'm not sure about the use of "agnostic" for a lack of belief in the possibility of proof/disproof though.  For any proposition, you can either have assent to it, denial of it, or "no comment".  These 3 positions should be fully fleshed out with regards to god's existence and ability to be known.