🚀 go-pugleaf

We will utilize the following three definitions.

Definition 1: A sentence is meaningful if and only if it is a picture
of a possible state of affairs.

Definition 2: A sentence is true if and only if it corresponds to an
actual state of affairs.

Definition 3: A sentence is false if its negation corresponds to an
actual state of affairs.

To further characterize possible we can say that it means imaginable.
Ludwig Wittgenstein says something very similar. He alludes to
imaginability a few times: If I can imagine objects combined in states
of affairs, I cannot imagine them excluded from the possibility of
such combinations. [TLP 2.0121], We picture facts to ourselves. [TLP
2.1] A picture is a model of reality. [TLP 2.12] Finally he says: A
picture represents a possible situation in a logical space [TLP 2.202]
But what does "possible" mean? What is thinkable is possible too. [TLP
3.02] So we have: A picture represents a thinkable situation in a
logical space. What is thinkable? 'A state of affairs is thinkable':
what this means is that we can picture it to ourselves. [TLP 3.001] So
finally we have: A situation in a logical space is a state of affairs
we that can picture to ourselves.  ...

http://xnewberry.tripod.com/SentencesLackTruthValues.html