*To*: acl2 at utlists.utexas.edu, coq-club at pauillac.inria.fr, hol-info at lists.sourceforge.net, isabelle-users at cl.cam.ac.uk, metaprl-users at metaprl.org, proofpower at lemma-one.com, pvs at csl.sri.com, open-axiom-announce at lists.sf.net, axiom-developer at nongnu.org, forum at gap-system.org, sage-devel at googlegroups.com, maxima at math.utexas.edu, project-calculemus at lists.jacobs-university.de, types at lists.chalmers.se*Subject*: [isabelle] PLMMS 2009: Extended deadline*From*: Laurent Théry <Laurent.Thery at sophia.inria.fr>*Date*: Tue, 12 May 2009 12:49:58 +0200*User-agent*: Thunderbird 2.0.0.21 (X11/20090320)

The ACM SIGSAM 2009 International Workshop on Programming Languages for Mechanized Mathematics Systems PLMMS 2009 Munich, Germany; August 21, 2009 http://plmms09.cse.tamu.edu/ CALL FOR PAPERS The ACM SIGSAM 2009 International Workshop on Programming Languages for Mechanized Mathematics Systems will be co-located with TPHOLs 2009. Important Dates * Abstract submission : May 15, 2009 (Apia, Samoa time) * Submission deadline: May 22, 2009 (Apia, Samoa time)

* Workshop: August 21, 2009 General Information The scope of this workshop is at the intersection of programming languages (PL) and mechanized mathematics systems (MMS). The latter category subsumes present-day computer algebra systems (CAS), interactive proof assistants (PA), and automated theorem provers (ATP), all heading towards fully integrated mechanized mathematical assistants. Areas of interest include all aspects of PL and MMS that meet in the following topics, but not limited to: * Dedicated input languages for MMS: covers all aspects of languages intended for the user to deploy or extend the system, both algorithmic and declarative ones. Typical examples are tactic definition languages such as Ltac in Coq, mathematical proof languages as in Mizar or Isar, or specialized programming languages built into CA systems. * Mathematical modeling languages used for programming: covers the relation of logical descriptions vs. algorithmic content. For instance the logic of ACL2 extends a version of Lisp, that of Coq is close to Haskell, and some portions of HOL are similar to ML and Haskell, while Maple tries to do both simultaneously. Such mathematical languages offer rich specification capabilities, which are rarely available in regular programming languages. How can programming benefit from mathematical concepts, without limiting mathematics to the computational world view? * Programming languages with mathematical specifications: covers advanced mathematical concepts in programming languages that improve the expressive power of functional specifications, type systems, module systems etc. Programming languages with dependent types are of particular interest here, as is intentionality vs extensionality. * Language elements for program verification: covers specific means built into a language to facilitate correctness proofs using MMS. For example, logical annotations within programs may be turned into verification conditions to be solved in a proof assistant eventually. How need MMS and PL to be improved to make this work conveniently and in a mathematically appealing way? These issues have a very colorful history. Many PL innovations first appeared in either CA or proof systems first, before migrating into more mainstream programming languages. This workshop is an

"modularity"? What are the biggest barriers to using a more mainstream language as a host language for a CAS or PA/ATP? PLMMS 2007 was held as a satellite event of, and PLMMS 2008 was a CICM 2008 workshop. Submission Details Submitted papers should be in portable document format (PDF), formatted using the ACM SIGPLAN style guidelines (http://www.acm.org/sigs/sigplan/authorInformation.htm). The length is restricted to 10 pages, and the font size 9pt. Each submission must adhere to SIGPLAN's republication policy, as explained on the web. Violation risks summary rejection of the offending submission. Papers are exclusively submitted via EasyChair http://www.easychair.org/conferences?conf=plmms09 We expect that at least one author of each accepted paper attends PLMMS 2009 and presents her or his paper. Accepted papers will appear in the ACM Digital Library. Links * http://plmms09.cse.tamu.edu/, the PLMMS 2009 workshop web site * http://tphols.in.tum.de/, the THOPLs 2009 conference web site Program Committee * Clemens Ballarin, aicas GmbH * Gabriel Dos Reis, Texas A&M University (Co-Chair) * Jean-Christophe Filliâtre, CNRS Université Paris Sud * Predrag Janicic, University of Belgrade * Jaakko Järvi, Texas A&M University * Florina Piroi, Johannes Kepler University * Laurent Théry, INRIA Sophia Antipolis (Co-Chair) * Makarius Wenzel, Technische Universität München

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