CFA: 6th Workshop on Connexive Logics

Claudia Tanús clau.tanus at
Mon Mar 23 20:43:40 EDT 2020

6th Workshop on Connexive Logics

After five workshops on connexive logics in Istanbul (June 2015), Raesfeld
Castle (June 2016), Kyoto (September 2017), and Bochum (October 2018 and
November 2019), a sixth workshop on connexive logics will take place in
Puebla (Mexico) from August 31st to September 2nd, 2020. The workshop will
be collocated with the Second Bilateral Meeting UNAM-UniCa on Analytic
Philosophy happening in Mexico City on August 27th and 28th, 2020.


Connexive logics are orthogonal to classical logic insofar as they validate
certain non-theorems of classical logic, namely

- Aristotle's Theses: ~(~A --> A), ~(A --> ~A)
- Boethius' Theses: (A --> B) --> ~(A --> ~B), (A --> ~B) --> ~(A --> B)

Modern connexive logic started in the 1960s with seminal papers by Richard
Angell and Storrs McCall. Since then, systems of connexive logic have been
motivated by considerations on a content connection between the antecedent
and consequent of valid implications, as well as by applications that range
Aristotle’s syllogistic to Categorial Grammar and the study of causal

Surveys of connexive logic can be found in:

- S. McCall, “A history of connexivity”, in D.M. Gabbay et al. (eds.),
Handbook of the History of Logic. Volume 11. Logic: A History of its
Concepts, Amsterdam, Elsevier, 2012, pp. 415-449.
- H. Wansing, “Connexive logic”, in E. N. Zalta (ed.), The Stanford
Encyclopedia of Philosophy,

There is also a special issue on connexive logics in the IfCoLog Journal of
Logics and their Applications based on papers presented during the first

Another special issue, published in Logic and Logical Philosophy, is based
papers presented during the third workshop.

As interests in topics related to connexive logics are growing, the sixth
workshop aims at discussing directions for future research in connexive
Special focus will be given on historical aspects as well as connections to
conditional logics.

Keynote speakers (in alphabetical order):

- Tomasz Jarmużek (Toruń)
- Christopher Martin (Auckland)
- Francesco Paoli (Cagliari)
- Yale Weiss (New York, TBC)

Call for abstracts:

Any papers related to connexive logics are welcome. Topics of interest
include (but are not limited to) the following:

- Philosophical and historical considerations of the notion of connexivity;
- Examinations of various systems of connexive logics;
- Relations between connexive logics and other non-classical logics, such
relevance or conditional logics;
- Philosophical implications of connexive logics;
- Empirical studies on the scope of connexivity.

Submissions of extended abstracts (up to five pages) should be sent as a
pdf file at


Deadline for submission: July 15, 2020.
Notification of decision: July 31, 2020.

Collocated event:

- Second Bilateral Meeting UNAM-UniCa on Analytic Philosophy, August 27-
-28, 2020, Mexico City.


The workshop is organized by:

Luis Estrada-González (UNAM)
Claudia Lucía Tanús-Pimentel (UNAM)
Roberto Casales-García (UPAEP)
José Martín Castro-Manzano (UPAEP)

with the generous support from UPAEP, the PAPIIT project IN403719
“Intensionality all the way down. A new plan for logical relevance” and
PAEP funds through the Graduate Program in Philosophy of Science. For any
inquiries, please write at non[dot]logic[dot]IIF[at]gmail[dot]com.
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