Horst Wessel on Modalities - Philosophy Lexicon of Arguments

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Philosophy Lexicon of Arguments


Modalities: modalities are in modal logic possibility, necessity and contingency. _____________ 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.

Wessel, Horst Books on Amazon	Modalities	I 343 Modality/Wessel: Def alethic m.: in the narrow sense modal: necessary, possible, contingent, real - alethic m.: can be logically or factually (ontological, empirical, physical, causal, etc.) - modal statements often are often translatable into non-modal form: E.g. "divisible " Modality/Wessel: in the broader sense: "provable", "undecidable", "verifiable" and so on-- Axiological modalities: "always", "sometimes", "never", "once", "same" - Wessel: these are no modalities at all. I 347 Modality/Wessel: predicative - if fA "the facts that A" then Q (fA) "the possible fact, that" - when modality refers to situations sA - truth value: refers to statements tA. _____________ 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.	We I H. Wessel Logik Berlin 1999

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