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19. Language / B. Reference / 4. Descriptive Reference / a. Sense and reference

[reference language has two components]

18 ideas
Every descriptive name has a sense, but may not have a reference [Frege]
Frege's Puzzle: from different semantics we infer different reference for two names with the same reference [Frege, by Fine,K]
Frege's 'sense' is ambiguous, between the meaning of a designator, and how it fixes reference [Frege]
Frege started as anti-realist, but the sense/reference distinction led him to realism [Frege, by Benardete,JA]
The meaning (reference) of 'evening star' is the same as that of 'morning star', but not the sense [Frege]
In maths, there are phrases with a clear sense, but no actual reference [Frege]
We are driven from sense to reference by our desire for truth [Frege]
Senses can't be subjective, because propositions would be private, and disagreement impossible [Frege]
By eliminating descriptions from primitive notation, Russell seems to reject 'sense' [Russell, by Kripke]
Often reference determines sense, and not (as Frege thought) vice versa [Putnam, by Scruton]
It is generally accepted that sense is defined as the determiner of reference [Katz]
It is claimed that reference doesn't fix sense (Jocasta), and sense doesn't fix reference (Twin Earth) [Fodor]
Frege's 'sense' solves four tricky puzzles [Salmon,N]
Referential Opacity says truth is lost when you substitute one referring term ('mother') for another ('Jocasta') [Rey]
Reference needs truth as well as sense [Hale/Wright]
Sense determines reference says same sense/same reference; new reference means new sense [Recanati]
We need sense as well as reference, but in a non-descriptive form, and mental files do that [Recanati]
Sense is a mental file (not its contents); similar files for Cicero and Tully are two senses [Recanati]