Analytic Philosophy in Visegrad Countries
Tichý’s Transparent Intensional Logic
Speaker: Bjørn Jespersen (Technical University of Ostrava)
Date and time: 17 December 2025, 14:30–16:00 CET (2:30–4:00 p.m. CET)
Format: Online lecture (3/9 in the lecture series)
The lecture takes place within the AP in V4 Lecture Series — Analytic Philosophy in Visegrad Countries, a project described at: https://ff.osu.eu/ap-in-v4/
. It is organised by Matej Bel University in Banská Bystrica (Slovakia), the University of Ostrava (Czech Republic), and the University of Warsaw (Poland), with the support of the Visegrad Fund.
If you are interested in joining, please contact zuzana.rybarikova@osu.cz
to receive the access details.
Abstract
This talk o ers a broad and accessible introduction to and overview of Tichý’s Transparent Intensional Logic (TIL). The talk places TIL in a historical and systematic context while highlighting some of its most characteristic features. Pavel Tichý was born in Czechoslovakia in 1936. He began developing TIL in the second half of the 1960s while still in Prague. By the time of his death in 1994 in New Zealand, he le behind a monograph and nine hundred pages’ worth of articles published in prominent venues. Within the last decade Tichý’s contributions to philosophical logic and logical analysis of natural language have begun to gain traction and wider attention. TIL belongs to the paradigm of logical objectivism, drawing inspiration not least from Frege. TIL quali es as semantic realism, though not entirely in Dummett’s sense, because TIL identi es the meaning of a sentence not with its truth-conditions but with an abstract procedure that presents these truth-conditions in a speci c way. Tichý referred to such procedures as constructions. These are algorithmically structured procedures detailing an itinerary toward any object in the typed universe of TIL. Tichý’s successors have further developed TIL as a procedural semantics that belongs to the camp of structured meaning. The talk will go over some applications and summarize the state of TIL as of the mid-2020s.
About the speaker
Bjørn Jespersen works primarily in philosophical logic, philosophy of language, hyperintensional semantics, and Transparent Intensional Logic (TIL). He is co-author (with Marie Duží and Pavel Materna) of Procedural Semantics for Hyperintensional Logic: Foundations and Applications of Transparent Intensional Logic (Springer, 2010) and has published extensively on TIL and related issues in natural-language semantics, epistemology, and epistemic logic.
Tichý’s Transparent Intensional Logic
Prelegent: Bjørn Jespersen (Technical University of Ostrava)
Data i godzina: 17 grudnia 2025 r., 14:30–16:00 (CET)
Forma: wykład online (3. z 9 w serii wykładów)
Wykład odbywa się w ramach projektu AP in V4 Lecture Series — Analytic Philosophy in Visegrad Countries, którego strona dostępna jest pod adresem: https://ff.osu.eu/ap-in-v4/
. Projekt jest organizowany przez Uniwersytet Mateja Bela w Bańskiej Bystrzycy (Słowacja), Uniwersytet Ostrawski (Czechy) oraz Uniwersytet Warszawski (Polska), przy wsparciu Visegrad Fund.
Osoby zainteresowane udziałem proszone są o kontakt z zuzana.rybarikova@osu.cz
w celu otrzymania linku do spotkania.
Abstrakt
This talk o ers a broad and accessible introduction to and overview of Tichý’s Transparent Intensional Logic (TIL). The talk places TIL in a historical and systematic context while highlighting some of its most characteristic features. Pavel Tichý was born in Czechoslovakia in 1936. He began developing TIL in the second half of the 1960s while still in Prague. By the time of his death in 1994 in New Zealand, he le behind a monograph and nine hundred pages’ worth of articles published in prominent venues. Within the last decade Tichý’s contributions to philosophical logic and logical analysis of natural language have begun to gain traction and wider attention. TIL belongs to the paradigm of logical objectivism, drawing inspiration not least from Frege. TIL quali es as semantic realism, though not entirely in Dummett’s sense, because TIL identi es the meaning of a sentence not with its truth-conditions but with an abstract procedure that presents these truth-conditions in a speci c way. Tichý referred to such procedures as constructions. These are algorithmically structured procedures detailing an itinerary toward any object in the typed universe of TIL. Tichý’s successors have further developed TIL as a procedural semantics that belongs to the camp of structured meaning. The talk will go over some applications and summarize the state of TIL as of the mid-2020s.
O prelegencie
Bjørn Jespersen zajmuje się przede wszystkim logiką filozoficzną, filozofią języka, semantyką hiperintensjonalną oraz Transparent Intensional Logic (TIL). Jest współautorem (wraz z Marie Duží i Pavlem Materną) monografii Procedural Semantics for Hyperintensional Logic: Foundations and Applications of Transparent Intensional Logic (Springer, 2010) oraz autorem licznych artykułów poświęconych TIL, semantyce języka naturalnego, epistemologii i logice epistemicznej.