|Grammar: total domain of linguistic theory encompassing syntax, semantics, phonology, morphology. W.V.O. Quine distinguishes the grammar from the lexicon. L. Wittgenstein calls sentences about language grammatical sentences. See also meaning, lexicon, language.|
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Application/use/grammar/convention/Wittgenstein: grammar does not say anything about application - as well as convention - presupposes applications. - E.g. That red differs from blue in a different way than red and chalk, because not formal, is not verified experimentally.
Grammar/Wittgenstein: in it there are no gaps - it is always complete - in it no discoveries are made - E.g. Sheffer stroke: was not a discovery, but a new space was found.
Grammar/Wittgenstein: we cannot describe it - because for this we would have to use the language again - grammar cannot cause that we say something that is not true - it is not determined by facts.
Grammar/Wittgenstein: of a grammatical rule, we cannot say that it corresponds to a fact or that contradicts it - the rules of grammar are independent of the facts.
Example of the term "The primary color No. 7" has no meaning - wrong: to believe that this would correspond to a fact of nature - the term has no parallels to E.g. "There is no two-meter man that would fit the standard sizes" - N.B.: on contrast, we could well ask why we do not have a 7th primary color if the grammar of "color" is arbitrary - that 7 colors cannot be arranged in a polyhedron, is not a natural fact.
Mathematics/grammar/Wittgenstein/(s): important for him is always the method or process.
Vorlesungen 1930-35 Frankfurt 1989
Das Blaue Buch - Eine Philosophische Betrachtung Frankfurt 1984
Tractatus Logico Philosophicus Frankfurt/M 1960