adamlsp:
I’m guessing that because the post you just listed nowhere uses a correct definition of S5 that you do not understand it. “Not learned enough” seems to perfectly describe your conception of these things. So since you have not knowledge, try humility first before acting like you’ve just cracked the case.
My apologies again. I was just working from the definition given in the original post in this thread. Maybe I will read up and find out in what way that definition was wrong.
Apologies too for mentioning opinions or beliefs. Bad philosophy. You’re quite right. Won’t happen again hopefully.
That definition was as follows:
“S5 is an axiom from S5 modal logic which states that is something is possibly necessarily true then it is necessarily true.”
All I really said was that I can’t see how, the statement if
possibly X then
definitely X, can be good logic, no matter what X is. In this case X is “this is necessarily true”.
Could someone explain that to me? Why can the “possibly” be lost in this case? Why can it be lost here, when it cannot be lost in other cases. (as it obviously can’t with my slightly straw man and non-existant Plutonians as I freely admit).
Next question. A maximal being is defined as necessarily existing (and omnipotent, omnipresent etc). Fair enough. It’s a definition. But could you explain to me why a maximal being should be a necessary concept in the first place. Why should there be a maximal being? Don’t get me wrong. I have faith that there is one. I just don’t see why there *has *to be one. This leaves honest room for doubt.
Or to put that question another way, It has been said, “What defines necessary existence is the fact that this being is the absolute greatest and that implies existence.” WHY does it imply existence? Why can’t we just be imagining (very imperfectly) an absolutely greatest being who doesn’t exist?
My knowledge of philosophy I freely admit to be lacking. Yes I did some study at college. I even won a scholarship award for results in a philosophy of religion exam (which may have been due to the poor quality of other entrants rather than any great quality of my own showing). But I’ve forgotten pretty much everything.
I’ve seen arguments proving God’s existence - flawless according to their own logic and definitions. I’ve also seen arguments disproving God’s existence - equally flawless according to their logic and definitions. And I’ve seen it eloquently “proven” that we have free will. And that we don’t have free will. And seen proponents of both sides of these arguments religiously clinging to their sides without accepting any possibility of real error or of flaws, fatal or otherwise, in their arguments. These people are so wise that they have become fools. May there never be people like that here.
In all the long forgotten studies I didn’t find anything that was an open-and-shut case. It was all very, very clever stuff. Clever stuff from theists and from atheists, and a fair share of agnostics. It was all quite fun too.
Yes, I lack knowledge. Hence the questions above. Answers will be appreciated - though I might not understand them, so keep it simple. Explain everything at each little step. Many thanks in advance.
Maybe there should be an philosophy forum as a subsection of apologetics. If scripture can be a subsection, so can philosophy.