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The genesis of On Certainty was Wittgenstein's "long interest" in two famous papers by G. E. Moore, his 1939 Proof of the External World and earlier Defence of Common Sense (1925). [2] Wittgenstein thought the latter was Moore's "best article", but despite that he did not think Moore's 'proof' of external reality decisive.
Form of life (German: Lebensform) is a term used sparingly by Ludwig Wittgenstein in posthumously published works Philosophical Investigations (PI), On Certainty and in parts of his Nachlass. [1] Wittgenstein in his Tractatus Logico-Philosophicus (TLP) was concerned with the structure of language, responding to Frege and Russell.
On Certainty is a series of notes made by Ludwig Wittgenstein just prior to his death. The main theme of the work is that context plays a role in epistemology. Wittgenstein asserts an anti-foundationalist message throughout the work: that every claim can be doubted but certainty is possible in a framework. "The function [propositions] serve in ...
Wittgenstein offers a subtle objection to Moore's argument in passage #554 of On Certainty. Considering "I know", he says "In its language-game it is not presumptuous ('nicht anmassend')," so that even if P implies Q, knowing P is true doesn't necessarily entail knowing Q. Moore has displaced "I know.."
Ludwig Josef Johann Wittgenstein (/ ˈ v ɪ t ɡ ən ʃ t aɪ n,-s t aɪ n / VIT-gən-s(h)tyne, [7] Austrian German: [ˈluːdvɪk ˈjoːsɛf ˈjoːhan ˈvɪtɡn̩ʃtaɪn]; 26 April 1889 – 29 April 1951) was an Austrian philosopher who worked primarily in logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language.
Believing that philosophical puzzles about colour can only be resolved through attention to the language games involved, Wittgenstein considers Goethe's propositions in the Theory of Colours, and the observations of Philipp Otto Runge in an attempt to clarify the use of language about colour. [2]
Zettel (German: "slip(s) of paper") is a collection of assorted remarks by Ludwig Wittgenstein, first published in 1967.It contains several discussions of philosophical psychology and of the tendency in philosophy to try for a synoptic view of phenomena. [1]
"Some Remarks on Logical Form" (1929 [1]) was the only academic paper ever published by Ludwig Wittgenstein, and contained Wittgenstein's thinking on logic and the philosophy of mathematics immediately before the rupture that divided the early Wittgenstein of the Tractatus Logico-Philosophicus from the late Wittgenstein. [2]