... regarding speculative empiricism, I found it, I think. 4.464. "The truth of tautology is certain, of propositions possible, of contradiction impossible. (Certain, possible, impossible: here we have an indication of that gradation which we need in the theory of probability). Segment of 4.463 [after discussing tautology and contradiction, which I think in this sense is stipulation and negation, he writes: The truth-condition determines the range, which is left to the facts by the proposition. (The proposition, the picture, the model, are in a negative sense like a solid body, which restricts the free movement of another: in a positive sense, like the space limited by solid substance, in which a body might be placed) So, possible statements are still propositions. It's only the form of the proposition that matters. Regards. Dr. Sean Wilson, Esq. Assistant Professor Wright State University Personal Website: http://seanwilson.org SSRN papers: http://ssrn.com/author=596860 Discussion Group: http://seanwilson.org/wittgenstein.discussion.html ========================================= Need Something? Check here: http://ludwig.squarespace.com/wittrslinks/