Combining Texts

All the ideas for 'talk', 'Goodbye Growing Block' and 'Tarski on Truth and Logical Consequence'

unexpand these ideas     |    start again     |     specify just one area for these texts


5 ideas

3. Truth / F. Semantic Truth / 1. Tarski's Truth / c. Meta-language for truth
'Snow is white' depends on meaning; whether snow is white depends on snow [Etchemendy]
     Full Idea: The difference between (a) snow is white, and (b) 'snow is white' true is that the first makes a claim that only depends on the colour of snow, while the second depends both on the colour of snow and the meaning of the sentence 'snow is white'.
     From: John Etchemendy (Tarski on Truth and Logical Consequence [1988], p.61), quoted by Richard L. Kirkham - Theories of Truth: a Critical Introduction 5.7
     A reaction: This is a helpful first step for those who have reached screaming point by being continually offered this apparently vacuous equivalence. This sentence works well if that stuff is a particular colour.
3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth
We can get a substantive account of Tarski's truth by adding primitive 'true' to the object language [Etchemendy]
     Full Idea: Getting from a Tarskian definition of truth to a substantive account of the semantic properties of the object language may involve as little as the reintroduction of a primitive notion of truth.
     From: John Etchemendy (Tarski on Truth and Logical Consequence [1988], p.60), quoted by Donald Davidson - Truth and Predication 1
     A reaction: This is, I think, the first stage in modern developments of axiomatic truth theories. The first problem would be to make sure you haven't reintroduced the Liar Paradox. You need axioms to give behaviour to the 'true' predicate.
27. Natural Reality / D. Time / 1. Nature of Time / f. Eternalism
Eternalism says all times are equally real, and future and past objects and properties are real [Merricks]
     Full Idea: Eternalism says all times are equally real. Objects existing at past times and objects existing at future times are just as real as objects existing at the present. Properties had at past and future times are as much properties as those at the present.
     From: Trenton Merricks (Goodbye Growing Block [2006], 1)
     A reaction: He adds that the present is therefore 'subjective', resulting from one's perspective. Why would eternalists reject their subjective experiences of time, unless they reject all their other subjective experiences as well?
27. Natural Reality / D. Time / 1. Nature of Time / g. Growing block
Growing block has a subjective present and a growing edge - but these could come apart [Merricks, by PG]
     Full Idea: Merricks argues that the growing block view says that we live in the subjective present, and that there is a growing edge of being, but he then suggests that these two could come apart, and it would make no difference, so the growing block is incoherent.
     From: report of Trenton Merricks (Goodbye Growing Block [2006], 4) by PG - Db (ideas)
     A reaction: [I think that is the nub of his argument. I couldn't find a concise summary in his words]
28. God / B. Proving God / 2. Proofs of Reason / b. Ontological Proof critique
God can't have silly perfections, but how do we decide which ones are 'silly'? [Joslin]
     Full Idea: It is clear that God cannot have all conceivable perfections, because otherwise he would have absurd perfections (like being the perfect prawn sandwich), so a line must be drawn, and how are we to decide which perfections are appropriate and essential?
     From: Jack Joslin (talk [2006]), quoted by PG - Db (ideas)
     A reaction: This is an excellent question for curbing the absurdities of those who want to load God with every good thing that can possibly be conceived. Is the God who is also a perfect prawn sandwich more perfect than the one who isn't?