No One to TRM to

Recently I have written a post about the Truth Relations Method (TRM) for find philosophical truth.  Roughly, one uses the truth relations held between proposed philosophical solutions to determine which one must be true.  It occurred to me that this method only works on a select kind of philosophical problems.  Namely, those problems that have an answer that must be true.  It further occurred to me that philosophical questions need not always have these kinds of answers.  For example, it is not necessarily true that we are free or not free.  Especially given the opacity of this question in philosophical discourse and the evidence we have, it seems that either possibility is actual.  This does not mean that the conceptual analysis of “free will” can go either way.  Thus, TRM cannot answer the question of whether we are free.  Further, I am not immediately sure how this question can be answered.  This does not mean that TRM is useless.  Rather, it means that TRM can only find the truth in those cases that the truth is necessarily true.  I believe an example of this is the conceptual analysis of “truth” itself. (Of course, now I have placed myself under a burden to perform this task—«sigh».  This will have to be a later post.) Or, it seems to me, the answer to the question “what is real?” must be a necessarily true answer.  I also suspect that the questions with a possibly true answer are intractable, but I don’t have an argument for that yet.

This leads me to wonder what kinds of questions in philosophy have necessarily true answers and which ones do not.  I provide a short list of questions and indicate whether (according to me anyway) the answers are necessarily true and which ones are (merely) possibly true.  Feel free to add to the list in the comments below; I will update the list accordingly.  If you disagree with a response that I have given, please feel free to voice your objection below.

1. What is knowledge?  Necessarily true.
2. Do we know truths?  Possibly true.
3. What is justification?  Necessarily true
4. Are we justified in believing something?  Possibly true
5. What is truth?  Necessarily true.
6. How ought we to live our lives?  Possibly true.
7. What is morally valuable?  Possibly true.  (Both depend, on my view, on what kinds of beings we are dealing with.  Different beings: different needs.  Different needs: different obligations.)
8. What is a right?  What is a duty?  Necessarily true.
9. What is real?  Necessarily true.
10. What is free will?  Necessarily True.
11. Are we free?  Possibly True.
12. Is there a God?  Possibly True.
13. What is God?  Necessarily true.
14. Why is there something rather than nothing?  Possibly true. (For, this requires an explanation, not a demonstration.  No one questions that there is something.)
15. Is the mind distinct from the body?  Possibly true.
16. What is the mind?  Necessarily true.

This should get us started.  I am anxious to hear your responses.