Full Idea
The possession conditions for the concept 'red' of the colour red are tied to those very conditions which individuate the colour red.
Gist of Idea
The concept 'red' is tied to what actually individuates red things
Source
Christopher Peacocke (Explaining the A Priori [2000], p.267), quoted by Carrie Jenkins - Grounding Concepts 2.5
Book Reference
Jenkins,Carrie: 'Grounding Concepts' [OUP 2008], p.58
A Reaction
Jenkins reports that he therefore argues that we can learn something about the word 'red' from thinking about the concept 'red', which is his new theory of the a priori. I find 'possession conditions' and 'individuation' to be very woolly concepts.