@misc{Lexicon of Arguments, title = {Quotation from: Lexicon of Arguments – Concepts - Ed. Martin Schulz, 29 Mar 2024}, author = {Wittgenstein,Ludwig}, subject = {Intensions}, note = {II 343 Intension/classes/quantities/Frege/Russell/WittgensteinVsRussell/WittgensteinVsFrege: both believed they could deal with the classes intensionally because they thought they could turn a list into a property, a function. >Set theory. II 416 Intension/extension/Mathematics/Wittgenstein: in everyday language intension and extension are not interchangeable - E.g. I hate the man in the chair - I hate Mr. Schmitz - on the other hand in mathematics: here, there is no difference between "the roots of the equation x² + 2x + 1 = 0 and "2"- in contrast difference: counting bodies ((s) extension, also writing down) is something different than to determine them with a law ((s) intension) - Wittgenstein: law and extension are completely different - ((s) >Physics). >Equations, >Mathematics. --- III 136-139 Elementary PropositionVsIntension - (protection of formal logic) - intension/meaning/Tractatus/Flor: irrelevant - it is always about extension. >Extension, >Meaning, >Propositions.}, note = { W II L. Wittgenstein Wittgenstein’s Lectures 1930-32, from the notes of John King and Desmond Lee, Oxford 1980 German Edition: Vorlesungen 1930-35 Frankfurt 1989 W III L. Wittgenstein The Blue and Brown Books (BB), Oxford 1958 German Edition: Das Blaue Buch - Eine Philosophische Betrachtung Frankfurt 1984 W IV L. Wittgenstein Tractatus Logico-Philosophicus (TLP), 1922, C.K. Ogden (trans.), London: Routledge & Kegan Paul. Originally published as “Logisch-Philosophische Abhandlung”, in Annalen der Naturphilosophische, XIV (3/4), 1921. German Edition: Tractatus logico-philosophicus Frankfurt/M 1960 }, file = {http://philosophy-science-humanities-controversies.com/listview-details.php?id=234629} url = {http://philosophy-science-humanities-controversies.com/listview-details.php?id=234629} }