Published: 31st October 2011
DOI: 10.4204/EPTCS.71
ISSN: 2075-2180


Proceedings Sixth International Workshop on
Logical Frameworks and Meta-languages: Theory and Practice
Nijmegen, The Netherlands, August 26, 2011

Edited by: Herman Geuvers and Gopalan Nadathur

Herman Geuvers and Gopalan Nadathur
A Lambda Term Representation Inspired by Linear Ordered Logic
Andreas Abel and Nicolai Kraus
A Bigraph Relational Model
Maxime Beauquier and Carsten Schürmann
Multi-level Contextual Type Theory
Mathieu Boespflug and Brigitte Pientka
Nominal Logic with Equations Only
Ranald Clouston
Nominal Henkin Semantics: simply-typed lambda-calculus models in nominal sets
Murdoch J. Gabbay and Dominic P. Mulligan
An Improved Implementation and Abstract Interface for Hybrid
Alan J. Martin and Amy P. Felty


This volume constitutes the proceedings of the Sixth International Workshop on Logical Frameworks and Meta-languages: Theory and Practice, LFMTP 2011. 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 and implementation on the one hand and their use in reasoning tasks ranging from the correctness of software to the properties of formal computational systems on the other hand have been the focus of considerable research over the last two decades. The LFMTP workshop series, which resulted from the amalgamation of the Logical Frameworks and Meta-languages (LFM) and the Mechanized Reasoning about Languages with Variable Binding (MERλIN) workshop series, is intended to bring together designers, implementors, and practitioners to discuss various aspects impinging on the structure and utility of logical frameworks. The topics that have been covered in the various editions of this workshop and its precursors have included the following: LFMTP 2011 was held on August 26, 2011 in Nijmegen, Netherlands, as a workshop associated with ITP 2011, the Second International Conference on Interactive Theorem Proving. In addition to presentations of the contributed papers contained in this proceedings, the program included invited talks by Henk Barendregt (Radboud University, Netherlands) and Michael Norrish (NICTA, Australia). Further, its program was integrated with that of the MLPA 11, the Third Workshop on Modules and Libraries for Proof Assistants.The full program can be found at the web site for LFMTP 2011.

LFMTP is a refereed workshop series. In 2011, papers were invited with May 23 as a deadline for submission. Each contributed papers was reviewed by three members of the program committee that consisted of the following individuals:

Acceptance decisions were made by consensus, based on the reviews. Authors of accepted papers were given an opportunity to revise their manuscripts prior to their presentation to take cognizance of the reviews. A further such opportunity was provided to take account of the feedback obtained at the workshop. The papers contained in these proceedings are the end result of this process.

Herman Geuvers
Gopalan Nadathur