Dear Asa and Dertonarm, I am reluctant to debate the 'materialistic' view of scientific knowlege if this implys 'Phisicalism' in the sense of 'the same meaning' . I prefer to refer in this context to Harty Field's 'Physicalism and primitive denotation' (in :Reference,Truth and Reality). But I will begin with Frege. Frege started,so to speak, from Kant's distinction between 'analytic versus synthetic' in the context of 'knowlege'. But in distinction to all other 'philosophers' before him ,he put the 'sentence' ('proposition' or 'statement') as the 'basic' or primary unit for any logical,etc. investigation. So, according to him, one should never ask for the 'meaning' of an word 'outside' of
an sentence. Only in the context of an sentence has a word
an 'meanig'and reference(' About sense and reference').I.e. also an sentence has an reference: the truth values: the truth or the false. He refused the so called 'corresponence theory' of truth because he thought in the context of correspondence as 'identity relation'. I.e. there is no sence in 'identity' between linquistic (sentence)- and extra linquitic 'entitys'. So to explain this
Kantian 'notions' he used the identity sentence:
'the evening star'= (the 'is' of identity relation)'the morning star'.
The identity relation of 'the morning star = the morning star' is 'based' (Kant) on 'the same meaning' and is analytic. But the identity relation between 'the morning star and the evening star' is 'synthetic'.By empiric discovery we learned that those are the same 'star'. So this kind of discovery 'enlarge our knowlege'. For those interested in the 'sence or nonsence' of this distiction I must refer to Quine ('Two dogmas of empiricism'). I am particulary interested in the (contra) distinction between 'the author' and 'the writer' because our both 'dramatis personae' think that there is some 'huge' difference between the two,eh, say, expressions.
Well B. Russel invented some identity sentences of his own by 'wrestling' and trying to improve on Freges 'fundations' (of math.)
So he invented this:
'The aouthor of Wawerely = ('is' the same as) Walther Scott'.
But:
'The writer of Wawerley'= must be some other person,according to our 'dramatis personae' because those
'expressions' have totaly different meanings. So, to give him a name, John Bolton. Ergo we have two 'authors' or 'writers' of the same book?
I think that this is not sensible and to demonstrate how easy it is to be 'provocativ' and 'eloquent' at the same time I will also quote some Latin saying:'eloquentiea una
sapientiea guta'.
Regards,