Philosophy Lexicon of Arguments

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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Books on Amazon
P. Lorenzen Ein dialogisches Konstruktivitätskriterium (1959) in Karel Berka/L. Kreiser Logik Texte Berlin, 1983

Berka I 267f
Logical Particles/Logical Constants/Dialogical Logic/Lorenzen: if a, b ... are dialogical statements (for example, proof definite), so we have to determine what the dialogue partners have to do (> action).
For example, if P asserts a u b, it is bound to assert both a and b.
All instructions are only for the proponent at first! That is, these are not real dialogues yet. Different: > Implication!

Lorn I
P. Lorenzen
Constructive Philosophy Cambridge 1987

Brk I
K. Berka/L. Kreiser
Logik Texte Berlin 1983

> Counter arguments against Lorenzen
> Counter arguments in relation to Logical Constants

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Ed. Martin Schulz, access date 2017-05-29