Philosophy Dictionary of ArgumentsHome | |||
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Logical truth: a statement is logically true if it is true on the basis of its form alone. This finding, however, is not absolute since the logical truth is also influenced by other factors such as e.g. the richness of the object language._____________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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Logic Texts on Logical Truth - Dictionary of Arguments
Read III 67 Logical truth-form: can one really reject a whole range of valid inferences, namely those which, although valid, are not valid because of their form? Yes: The logical truths. For example, "nothing is round and square at the same time". Neither "round" nor "square" are logical expressions, so the form of the statement "nothing is both F and G", which can obviously be made wrong by an appropriate interpretation of F and F. But something must have been overlooked here, because "nothing is both round and square" cannot be wrong! It is a necessary truth! Necessity: the classical criterion of logical deduction does not mention necessity! >Necessity, >Deduction, cf. >Round square._____________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. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
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 Logic, Englewood Cliffs, New Jersey 1973 - German: Logik Stuttgart 1983 Sai V R.M.Sainsbury Paradoxes, Cambridge/New York/Melbourne 1995 - German: Paradoxien Stuttgart 2001 Re III St. Read Thinking About Logic: An Introduction to the Philosophy of Logic. 1995 Oxford University Press German Edition: Philosophie der Logik Hamburg 1997 |