|Logical constants: logical constants are also called logical particles or connectives, they are e.g. “and”; “or”; “if”; “then”; “not”. The expression constant is used, because the meaning of the logical links cannot change also in the translation into other languages, but always remains. For example, if one was to try to replace "and" with "or" in the case of a translation, mistakes would arise which could be determined, even if the vocabulary of the foreign language is not entirely known.|
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|EMD II 56
Speaking relative/logical constants/intuitionism/Quine/McDowell: one might think that the logical constants have a different meaning in intuitionism than in classical logic. - Vs: Problem: then the intuitionist could not reject the law of the excluded middle, because it would mean something different from his mouth than from the mouth of the classical logician. - Otherwise he would have to take a schizophrenic position (> Prior).
Translation involves, to describe the linguistic behavior of the other, so one understands what the other is exactly rejecting. - ((s) The complete non-comprehension of the reasons of another is compatible with understanding the meanings of the words used, i.e., speaking the same language, or translating it perfectly.)
EMD II 56
Logical Constants: if they get their meaning from logical truths that are true with any interpretation: then the meaning must be in what remains the same: the connnections. - validity: question of the meaning loyalty of logical constants.
Geist und Welt Frankfurt 2001
G. Evans/J. McDowell
Truth and Meaning Oxford 1977
The Varieties of Reference (Clarendon Paperbacks) Oxford 1989