|Reference, in philosophy: relation of a linguistic expression or action to a real object. Reference presupposes the existence of this object. An expression, which corresponds to no object, has no reference, however, may have a meaning. See also unicorn, Pegasus.|
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Reference/Extension/Theory/Meaning Change/Putnam: E.g. acid: today, we mean something different when we use the word. - Putnam: yet we are talking about the same thing. - HackingVsPutnam: E.g. Lavoisier held all views accepted today plus the wrong one that all acids contain oxygen. - In spite of the mistake he spoke of the same acids. - Today: Normal acids and Bronsted Lovry acids cover all acids - but they are mutually exclusive. - Only in special cases it is necessary to know which one you mean.
Einführung in die Philosophie der Naturwissenschaften Stuttgart 1996