Ideas from 'The Varieties of Reference' by Gareth Evans [1980], by Theme Structure

[found in 'The Varieties of Reference' by Evans,Gareth [OUP 2002,0-19-824686-2]].

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12. Knowledge Sources / B. Perception / 6. Inference in Perception
Experiences have no conceptual content
We have far fewer colour concepts than we have discriminations of colour
18. Thought / D. Concepts / 1. Concepts / a. Nature of concepts
The Generality Constraint says if you can think a predicate you can apply it to anything
18. Thought / D. Concepts / 3. Ontology of Concepts / b. Concepts as abilities
Concepts have a 'Generality Constraint', that we must know how predicates apply to them