Philosophy Lexicon of Arguments

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Mention philosophy: the mention of linguistic objects must be distinguished from their use. This distinction is sometimes difficult when symbols are partly used and partly mentioned within logical formulas. One simple case of a mention of a word or phrase is the quote. See also object language, metalanguage, quote, reference, occurrence, type, token.

Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.

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IV 243
Mentioning/use/confusion/W. Salmon: e.g. 9/12 has a nine in the numerator - 3/4 = 9/12 - 3/4 has a nine in the numerator - If we want to talk about number signs, we have to make names for them - we have to replace the second premise by "3/4" = "9/12" (wrong! while 3/4 = 9/12 is mathematically correct!) What is wrong with the syllogism? The name of the number sign of the first premise must be understood as a non-compound word. And parts of words must not be replaced.
IV 244
"There are no binary numbers in reality! (these are signs) - in the same way "Roman numerals" or "Arabic numerals" are always signs! The decimal system or the binary system are also just sign systems that refer to the same numbers".

Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.
Logic Texts
Me I Albert Menne Folgerichtig Denken Darmstadt 1988
HH II Hoyningen-Huene Formale Logik, Stuttgart 1998
Re III Stephen Read Philosophie der Logik Hamburg 1997
Sal IV Wesley C. Salmon Logik Stuttgart 1983
Sai V R.M.Sainsbury Paradoxien Stuttgart 2001

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Ed. Martin Schulz, access date 2018-04-22