Performative contradiction are performative contradictions in this context. Habermas claims that post-modernism's epistemological relativism suffers from a performative contradiction. Hans-Hermann Hoppe claims in his theory of argumentation ethics that arguing for any political position other than free-market anarchism results in a performative contradiction. Jaakko Hintikka more rigorously fleshed out the notion of performative contradiction in analyzing Descartes' famous "cogito ergo sum" argument, concluding that "cogito ergo sum" relies on performance rather than logical inference. Performative contradiction A performative contradiction () arises when the propositional content of a statement contradicts the presuppositions of asserting it. An example of a performative contradiction is the
Mr. Cogito Mr. Cogito appears in the following books of poetry by Herbert: "Mr. Cogito" is a book of poems by Zbigniew Herbert. First published in 1974, the first mention of its possible release dates back to 1969. Four years later, in January 1973, the Catholic weekly "Tygodnik Powszechny" published to great popular acclaim one poem from the planned volume, the iconic "Przesłanie Pana Cogito" ("The Message of Mr. Cogito"). The collection ultimately consisted of 40 poems, which build up the drama around its single main character, Mr. Cogito. Mr. Cogito, who is involved in all the monologues and dialogues in the