December 2021
The 21st Trends in Logic international conference took palce at Ruhr University Bochum from December 6December 8, 2021 under the title “Frontiers of connexive logic”, see https://sites.google.com/view/trendsinlogicxxi/home.
The conference was organized by Hitoshi Omori and Heinrich Wansing. Invited lectures were given by:

Libor Běhounek (Ostrava) "On the connexivity of fuzzy counterfactuals"

Paul Egré (Paris) "Trivalent connexive logics and relevance"

Andrea Iacona (Turin) "On the logical form of concessive conditionals"

Marko Malink (New York) "The Origins of Conditional Logic: Theophrastus on Hypothetical Syllogisms"

Jacek Malinowski (Warsaw) "A Variety of Connexive Logics via Relating Semantics"

Edwin Mares (Wellington) "Relevant Semantics for Connexive Logics

George Metcalfe (Bern) "Substructural logics with minimally true tautologies"

Francesco Paoli (Cagliari) "Intuitionistic logic is a connexive logic"

Niki Pfeifer (Regensburg) "Two approaches to validate connexive principles: conditional events and conditional probability"

Claudio Pizzi (Siena) "An introduction to Boethian logics"

Hans Rott (Regensburg) "Differencemaking conditionals and connexivity"
There were the following talks in the Loigc and Epistemology colloquium:
 Dec 2, Corina Strößner (RUB), Default logic and modification
 Dec 16, Norihiro Kamide (Teikyo University), Expanding the realm of BelnapDunn logic: Selfextensional fourvalued paradefinite logic, subtrilattice logic, and symmetric paraconsistent quantum logic
November 2021
On November 28 and 29, 2021 the workshop Model Theory of Nonclassical Logics: Diversity and its Invariants took palce at Ruhr University Bochum, see https://sites.google.com/view/workshopmtnldi/home. The workshop was organized by Grigory Olkhovikov.
Speakers:
 Guillermo Badia (University of Queensland)
 Xavier Caicedo (University of Los Andes)
 Petr Cintula (Czech Academy of Sciences)
 Paolo Maffezioli (University of Turin)
 Carles Noguera (Czech Academy of Sciences)
 Luca Tranchini (University of Tübingen)
 Sergey Drobyshevich (Novosibirsk State University)
 Grigory Olkhovikov (Ruhr University Bochum)
The third NonClassical Modal and Predicate Logics conference took place at Ruhr University Bochum from November 23November 26, 2021, see https://sites.google.com/view/ncmpl2021/home. The invited speakers were:

Marta Bilkova (Prague)

Liron Cohen (Tel Aviv)

Oystein Linnebo (Oslo) (Erlangen) (New York)

Tadeusz Litak (Erlangen)

Carles Noguera (Prague)

Graham Priest (New York)

Valentin Shehtman (Moscow)

Zach Weber (Otago)
There were the following talks in the Loigc and Epistemology colloquium:
 Nov 4, Joao Marcos (UFRN) Proof Search on Bilateralist Judgements over NonDeterministic Semantics
 Nov 11, Satoru Niki (RUB) Intuitionistic knowledge and disjunction
 Nov 18, Frederik van de Putte (Rotterdam) The problem of no hands: responsibility voids in collective decisions
October 2021
Heinrich Wansing joined the Program Committe of the Trends in Logic XXII conference "Strong and Weak Kleene logics", Cagliari, 2022.
There were the following talks in the Loigc and Epistemology colloquium:
 Oct 14, Kees van Berkel (TU Vienna), "A prooftheoretic approach to deontic STIT logic and the analysis of ‘OughtimpliesCan’"
 Oct 21, Andrew Tedder (RZB), "Relevant propositional dynamic logic"
 Oct 28, Andreas Kapsner (LMU), Connexivity and Explosion
September 2021
Heinrich Wansing chaired the Logic Section of the XXV. Congress of the German Society for Philosophy, September 5th – 9th, 2021, FriedrichAlexanderUniversität ErlangenNürnberg, see https://dgphil2020.fau.de/en/programme/sections/
Moreover, he joined the Program Committee of the conference NonClassical Logics. Theory and Applications 2022, Łódź (Poland).
Sara Ayhan coorganized the conference PHDS IN LOGIC XII, September 8  10, 2021, Freie Universität Berlin (Germany), and virtually.
August 2021
The special issue on negation of Logical Investigations (Moscow) appeared, see https://logicalinvestigations.ru/issue/view/33?lang=en. It is dedicated to the memory of Prof. J. Michael Dunn and edited by Heinrich Wansing, Grogory Olkhovikov, Hitoshi Omori.
The posters for NCMPL 2021 and Trends in Logic XXI were printed:
July 2021
On July 12, Christopher Badura very successfully defended his PhD thesis Logic(s) of Imagination. The reviewers were Prof. Franz Berto (St Andrews) and Prof. Heinrich Wansing. Congratulations Christopher!
The (first) ŁódźBochum Workshop on Logic took palce on July 2nd and 3rd, 2021
Speakers:

Sara Ayhan (Bochum)

Andrzej Indrzejczak (Łódź)

Janusz Kaczmarek (Łódź)

Satoru Niki (Bochum)

Marek Nowak (Łódź)

Hitoshi Omori (Bochum)

Yaroslav Petrukhin (Łódź)

Daniel Skurt (Bochum)

Heinrich Wansing (Bochum)

Michał Zawidski (Łódź)
Heinrich Wansing joined the Program Committee of the conference Advances in Modal Logic 2022, to be held in Rennes (France).
June 2021
There were the following talks in the Loigc and Epistemology colloquium:

10.6 Marcus Rossberg (Connecticut), "An Inferentialist Redundancy Theory of Truth"

17.6 Andrew Tedder (Bochum), "General Neighbourhood Semantics for First Order Relevant Logic"

24.6 Kai Wehmeier (Irvine), "Is Classical Predicate Logic Extensional?"
May 2021
There were the following talks in the Loigc and Epistemology colloquium:

6.5 Graham Priest (New York & Melbourne & Bochum), "Substructural Solutions to the Semantic Paradoxes: a Dialetheic Perspective" (Part I)

20.5 Grigory Olkhovikov (Bochum), "A Lindström result for biintuitionistic propositional logic"
April 2021
The website and call for papers for NonClassical Modal and Predicate Logics, Bochum, November 23November 26, 2021 has gone online.
Heinrich Wansing has been granted an ERC 2020 Advanced Grant for a project on Contradictory Logics: A Radical Challenge to Logical Orthodoxy
see https://forschung.ruhrunibochum.de/en/inconsistentlogics
https://erc.europa.eu/sites/default/files/document/file/erc2020adgresultssh.pdf
https://erc.europa.eu/sites/default/files/document/file/erc2020adgstatistics.pdf
There were the following talks in the Loigc and Epistemology colloquium:

April 15: Evgeny Borisov (Tomsk), "A Logic for Crossworld Predication"

April 22: Davide Fazio (Cagliari), "On Paraconsistent Belief Revision from an algebraic perspective"

April 29: Satoru Niki (Bochum), "Revisiting justification semantics for intuitionistic logic"
Heinrich Wansing joined the program commitee of the Twelfth Smirnov Readings in Logic to be held on 2426 June 2021.
March 2021
Heinrich Wansing joined the program commitee of LOGICA 2021, http://logika.flu.cas.cz/logica.
February 2021
There were the following talks in the Loigc and Epistemology colloquium:

February 4: Allard Tamminga (Greifswald) "Expressivity Results for Deontic Logics of Collective Agency"

February 11: Grigory Olkhovikov (Bochum) "Lindström Theorems in Modal and NonClassical Logics"
January 2021
There were the following talks in the Loigc and Epistemology colloquium:

January 7: Graham Priest (CUNY & Melbourne & Bochum) "Reflections on Orlov"

January 14: Hitoshi Omori (Bochum) "An alternative semantics for infectious logics"

January 21: Lisa Michajlova (Bochum) "Combining Logic & Probability  A Probabilistic Argumentation Framework"

January 28: Daniel Skurt (Bochum) "Neighbourhood semantics for FDEbased modal logics"
The inclusion of a quote from Rudolf Carnap notwithstanding, the following video is among things that make me not celebrate the "World Logic Day":https://www.youtube.com/watch?v=uJJZLQsukZY&t=36s