Combining Texts

Ideas for 'Mahaprajnaparamitashastra', 'Semantic Relationism' and 'Virtue Epistemology'

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6 ideas

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic
The usual Tarskian interpretation of variables is to specify their range of values [Fine,K]
     Full Idea: The usual Tarskian way of indicating how a variable is to be interpreted is to simply specify its range of values.
     From: Kit Fine (Semantic Relationism [2007], 1.B)
Variables can be viewed as special terms - functions taking assignments into individuals [Fine,K]
     Full Idea: The alternative Tarskian way of indicating how a variable is to be interpreted is that a variable x will be a special case of the semantic value of the term; it will be a function which takes each assignment into the individual which it assigns to x.
     From: Kit Fine (Semantic Relationism [2007], 1.B)
It seemed that Frege gave the syntax for variables, and Tarski the semantics, and that was that [Fine,K]
     Full Idea: Once Frege had provided a clear syntactic account of variables and once Tarski had supplemented this with a rigorous semantic account, it would appear that there was nothing more of significance to be said.
     From: Kit Fine (Semantic Relationism [2007], 1)
     A reaction: He later remarks that there are now three semantic accounts: the Tarskian, the instantial, and the algebraic [see xref ideas]. He offers a fourth account in his Semantic Relationism. This grows from his puzzles about variables.
In separate expressions variables seem identical in role, but in the same expression they aren't [Fine,K]
     Full Idea: When we consider the semantic role of 'x' and 'y' in two distinct expressions x>0 and y>0, their semantic roles seems the same. But in the same expression, such as x>y, their roles seem to be different.
     From: Kit Fine (Semantic Relationism [2007], 1.A)
     A reaction: [compressed] This new puzzle about variables leads Fine to say that the semantics of variables, and other expressions, is not intrinsic to them, but depends on their external relations. Variables denote any term - unless another variable got there first.
The 'algebraic' account of variables reduces quantification to the algebra of its component parts [Fine,K]
     Full Idea: In the 'algebraic' approach to variables, we move from a quantified sentence to the term specifying a property (the λ-term), and then reducing to the algebraic operations for atomic formulas.
     From: Kit Fine (Semantic Relationism [2007], 1.C)
     A reaction: [Bealer is a source for this view] Fine describes it as an 'algebra of operations'. I presume this is a thoroughly formalist approach to the matter, which doesn't seem to get to the heart of the semantic question.
'Instantial' accounts of variables say we grasp arbitrary instances from their use in quantification [Fine,K]
     Full Idea: According to the 'instantial' approach to variables, a closed quantified sentence is to be understood on the basis of one of its instances; from an understanding of an instance we understand satisfaction by an arbitrary individual.
     From: Kit Fine (Semantic Relationism [2007], 1.D)
     A reaction: Fine comments that this is intuitively plausible, but not very precise, because it depends on 'abstraction' of the individual from the expression.