|Colours: in philosophy among other things, the question of how individual > sensory impressions can be generalized or objectified. See also qualities, qualia, perception, inverted spectra, private language.|
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|Colour||Dummett I 60ff
Frege/Dummett: "When we see a blue surface, we have a peculiar impression that corresponds to the word "blue"; and we recognize it when we see another blue surface."
Dum I 60ff
But even in common language use an objective sense stands out: If you call snow white - E.g. If the snow is lighted with colored lights, the effect influences the assessment. It now appears red, but it is white.
Even a color-blind person can speak of red and green. He can tell the difference because others make a distinction, or perhaps through a physical experiment. The color word does often not refer to our subjective sensation. The color-blind person can recognize it, because the others recognize it as such.
Frege: "Red": uniform reference, changing (Fregean) sense in speakers. (DummettVs)
Die Grundlagen der Arithmetik Stuttgart 1987
Funktion, Begriff, Bedeutung Göttingen 1994
Logische Untersuchungen Göttingen 1993
Ursprünge der analytischen Philosophie Frankfurt 1992
Wahrheit Stuttgart 1982