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[Carlos Olarte <carlos.olarte AT gmail.com>]

[Apologies if you receive multiple copies of this CFP. Please forward to interested parties]

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                **DEADLINE EXTENSION**

   **New abstract submission deadline: April 20, 2023**

                          LFMTP 2023

           Logical Frameworks and Meta-Languages:
                   Theory and Practice

             Rome, Italy -- July 2nd, 2023
               Affiliated with FSCD 2023

              https://lfmtp.org/workshops/2023

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Logical frameworks and meta-languages form a common substrate for
representing, implementing and reasoning about a wide variety of
deductive systems of interest in logic and computer science. Their
design, implementation and their use in reasoning tasks, ranging from
the correctness of software to the properties of formal systems,
have been the focus of considerable research over the last two decades.
This workshop will bring together designers, implementors and
practitioners to discuss various aspects impinging on the structure and
utility of logical frameworks, including the treatment of variable
binding, inductive and co-inductive reasoning techniques and the
expressiveness and lucidity of the reasoning process.

LFMTP 2023 will provide researchers a forum to present state-of-the-art
techniques and discuss progress in areas such as the following:

* Encoding and reasoning about the meta-theory of programming languages,
  logical systems and related formally specified systems.

* Theoretical and practical issues concerning the treatment of variable
  binding, especially the representation of, and reasoning about,
  datatypes defined from binding signatures.

* Logical treatments of inductive and co-inductive definitions and
  associated reasoning techniques, including inductive types of higher
  dimension in homotopy type theory.

* Graphical languages for building proofs, applications in geometry,
  equational reasoning and category theory.

* New theory contributions: canonical and substructural frameworks,
  contextual frameworks, proof-theoretic foundations supporting
  binders, functional programming over logical frameworks,
  homotopy and cubical type theory.

* Applications of logical frameworks: proof-carrying architectures,
  proof exchange and transformation, program refactoring, etc.

* Techniques for programming with binders in functional programming
  languages such as Haskell, OCaml or Agda, and logic programming
  languages such as lambda Prolog or Alpha-Prolog.

The workshop's program will include contributed and invited talks.
We hope that LFMTP takes place physically in Rome, but online
participation will be possible and may even be necessary.

## Important Dates

Abstract submission deadline: *Extended* April 20 (AoE)
Paper submission deadline: *Extended* April 27 (AoE)
Notification to authors: May 26

## Submission

Submit on EasyChair: https://easychair.org/conferences/?conf=lfmtp23

All papers must be original and not simultaneously submitted to another
journal or conference.

In addition to regular papers, we welcome/encourage the submission of
"work in progress" reports, in a broad sense. Those do not need to
report fully polished research results, but should be of interest for
the community at large.

Submitted papers should be in PDF, formatted using the EPTCS style
guidelines (https://info.eptcs.org/). The length is restricted to 15
pages for regular papers and 8 pages for "work in progress" papers
(both limits include references).

## Proceedings

A selection of the presented papers will be published online in the
Electronic Proceedings in Theoretical Computer Science (EPTCS).

## Invited Speakers

- Niki Vazou (IMDEA Software Institute Madrid, Spain)

Note: shared session with LSFA'23 (https://sites.google.com/ufg.br/lsfa2023).

## Program Committee

* Roberto Blanco (MPI-SP)
* Frédéric Blanqui (Inria)
* Ana Bove (Chalmers University of Technology)
* Alberto Ciaffaglione, co-chair (Università degli Studi di Udine)
* Amy Felty (University of Ottawa)
* Assia Mahboubi (Inria)
* Narciso Marti-Oliet (Universidad Complutense de Madrid)
* Gopalan Nadathur (University of Minnesota)
* Carlos Olarte, co-chair (LIPN, Université Sorbonne Paris Nord)
* Clément Pit-Claudel (Amazon AWS)
* Andrei Popescu (University of Sheffield)
* Claudio Sacerdoti Coen (University of Bologna)