Combining Philosophers

Ideas for Zoroaster, Horsten,L/Pettigrew,R and Bernard Linsky

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6 ideas

5. Theory of Logic / A. Overview of Logic / 9. Philosophical Logic

18739

Three stages of philosophical logic: syntactic (1905-55), possible worlds (1963-85), widening (1990-) [Horsten/Pettigrew]

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

18741

Logical formalization makes concepts precise, and also shows their interrelation [Horsten/Pettigrew]

5. Theory of Logic / F. Referring in Logic / 2. Descriptions / b. Definite descriptions

18774

Definite descriptions, unlike proper names, have a logical structure [Linsky,B]

5. Theory of Logic / F. Referring in Logic / 2. Descriptions / c. Theory of definite descriptions

21727

Definite descriptions theory eliminates the King of France, but not the Queen of England [Linsky,B]

5. Theory of Logic / I. Semantics of Logic / 5. Extensionalism

21719

Extensionalism means what is true of a function is true of coextensive functions [Linsky,B]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

18744

Models are sets with functions and relations, and truth built up from the components [Horsten/Pettigrew]