Frege's puzzle - Salmon Flashcards
Cava with a=a and a=b written on the torso
Frege poses the problem that a=a and a=b should give the same information (as they are equal) but they clearly don’t
Venus with a planet on either hand
It’s not a problem about identity, but about pieces of information
Mom with a piece of paper with a smiling Mentana on a cloud on it, spitting seeds to it
The semantic role of a declarative sentence is to encode information (information content); pieces of information are abstract
Smiling Mentana on top of a scale, an arrow from him to one side where there’s Danilo between brackets outside an f; from here an arrow to other side where there’s Ditto; from here arrow to Dr Satne
Information content generates information value; it determines semantic intension, which is a function that determines the extension to any possible world; the extension of a singular term is its referent
Scale with Mentana on top and The Dictator on bottom, an arrow from Mentana to one side where there’s Dr Satne
According to the Naive Theory, the information value of a singular term is its referent in that context
“Socrates is Wise” in brackets outside an f with Playboy’s ears on top; under it Socrates and Thinker statue appearing from bottom at same time
According to Russel, the sentence states something about propositional functions, which are uniquely and co-instantiated
Scale with Mentana holding a piece of paper on top and Cava on bottom, arrow from paper going to one side where there’s Dr Satne doing kettlebell swings; from here an arrow to other side where there’s a street sign on a cloud; arrow from sign to Mentana
According to Frege, a sentence refers to its referent but it does so because it expresses its sense (conceptual representation); referent is what fits the sense in that occasion. The sense is its information value
Cava with a=a and a=b on the torso, with a green and b brown on clouds
Frege solves Frege’s puzzle saying that a=b is informative as it is constituted by the senses of a and b, which are different
Cava giving the name Babbo to Andrea, clouds above start raining
Frege recognises that which object a proper name names is due only to linguistic usage or human decision; this undermines his theory
a in a cloud with arrow going through Paul Pierce spitting seeds to a piece of paper with φa on it; on top there are Playboy’s ears and at bottom Cava
According to both Russel and Frege, the conceptual content of names semantically determines the truth conditions of its containing sentence φa, if the conceptual content of a satisfies φ
Lorenzo writing a while saying “deh”, arrow with clouds going from him to Dr Satne
A descriptional term is one that refers by way of properties or concepts
S Anna basket field with Mary and Eucharistic instead of baskets; Playboy’s ears and Cava in the middle, Cava on side of Eucharistic and crippled parishioner on side of Mary
Frege and Russel held that proper names and indexical singular terms are descriptional, and only relationally descriptional or thoroughly descriptional (Frege)
Dr Satne pointing at Diletta with champagne in glass; they both laugh at Lorenzo writing while saying “deh”
Theory of direct reference, thanks to examples of determining the wrong person (Kripke), says that proper names etc are nondescriptional
Mariaelena with Kripke’s beard arm-wrestling with Cava for Dr Satne spitting seeds
Disagreement between orthodox and direct-reference is not about existence of descriptive content, but about its semantic role to secure a referent
Scale with Mentana on top, on one side Aristotle with a baby with a spear and on the other Aristotle as judge of Faenza’s championship; difference sign bottom with Aristotle and Lazza
The information value cannot be relativized subjectively (be different from person to person); difference between this and relativization to a particular type of use