My example reads like this:
My great-grand father was born in 1882. This statement is still true today. And it was already true in 504BC.
So I don't understand your reply. Are you prepared to explain your point?
EB
There is a statement: "My great-grand father was born in 1882.
This statement is still true today. And it was already true in 504BC."
To me that is wrong from the start. My great-grandfather was born about 1810.
So i have the problem of first get who the sentence is referring to.
This is a very interesting point but that's only for people interested in how we could possibly justify that a statement is true or not but that's not the problem here. Here the problem is whether certain statements could be true or not. If they are true then they are absolutely true. If they are not absolutely true then they are not true at all.
So basically you are saying that your great-grandfather was born about 1810, so you're actually saying it's true that your great-grandfather was born about 1810, and so it is absolutely true that your great-grandfather was born about 1810, yet you also say that that's not really true at all because you just don't know, or you can't explain how you know or how to prove that it is true that your great-grandfather was born about 1810. I'm confused here as to what you are saying exactly.
Of course we have this problem of how to prove that a statement is true. But that's not the point. A statement is true independently of whether we know it is true or false or whether we can explain how we know it is true. It's just too bad we can't explain these things but that's not the issue here. The issue is whether there is any reason that no statement could possibly be true.
So for example the question of whom the sentence is referring to. Well, we say it is "your great-grand father". I don't know you so I wouldn't know who is your great-grand father but it is certainly true that either you had a great-grand father, or you didn't, or the expression "your great-grand father" is meaningless. Can you see any other alternative? If not, then one of these alternative statements has to be true and therefore there is a true statement. We don't know which one but one of them is true, which is the point.
You may think that this a joke but it is really an important point: what is the statement? It is a collection of cases that must be true.
Sorry I don't understand that. What is a collection of cases in this juncture?
There is no way you can refer to your reltives birthday in a absolute way. There are only relative adressing in the real world.
So that's all your problem is it? Your problem is that as long as you don't have a complete description of the world you don't accept that anything true can be said about it, is that it? Well, this is obviously not true. This is a confusion again between the problem of our inability to explain and justify our beliefs that a statement is true with the question of the reality of a true statements independently of whether we can explain anything.
I can say "I am here" and it's true and the fact that I am specifying a location relatively to me doesn't change the fact that I am here and not elsewhere. Of course two people located in different places and saying both "I am here" don't mean the same location so both statements are in fact correct. Of course it all depends what people mean exactly. Some statements are not true because people make them on the basis of erroneous beliefs and maybe all our beliefs are like this but this does not preclude the possibility of making true statements.
Or maybe I misunderstood your point.
EB