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+
<ul>
+ <li class="paper">
+ <span class="paper_author">
+ Andrea Asperti, Enrico Tassi
+ </span><br/>
+ <span class="paper_title">
+ Higher order proof reconstruction from paramodulation-based refutations:
+ the unit equality case
+ </span>
+ <a class="paper_download" href="PAPERS/hopr.pdf">
+ <span class="pdf_logo">.pdf</span>
+ </a>
+ <span class="paper_info">
+ Accepted for publication in the proceedings of MKM 2007: The 6th
+ International Conference on Mathematical Knowledge Management.
+ </span>
+ <span class="paper_abstract">
+ In this paper we address the problem of reconstructing a
+ higher order, checkable proof object starting from a proof trace left by a
+ first order automatic proof searching procedure, in a restricted equational
+ framework. The automatic procedure is based on superposition rules for
+ the unit equality case. Proof transformation techniques aimed to improve
+ the readability of the final proof are discussed.
+ </span>
+ </li>
+
+ <li class="paper">
+ <span class="paper_author">
+ Claudio Sacerdoti Coen, Stefano Zacchiroli
+ </span><br/>
+ <span class="paper_title">
+ Spurious Disambiguation Error Detection
+ </span>
+ <a class="paper_download" href="PAPERS/disambiguation-errors.pdf">
+ <span class="pdf_logo">.pdf</span>
+ </a>
+ <span class="paper_info">
+ Accepted for publication in the proceedings of MKM 2007: The 6th
+ International Conference on Mathematical Knowledge Management.
+ </span>
+ <span class="paper_abstract">
+ The disambiguation approach to the input of formulae enables the user to
+ type correct formulae in a terse syntax close to the usual ambiguous
+ mathematical notation. When it comes to incorrect formulae we want to
+ present only errors related to the interpretation meant by the user, hiding
+ errors related to other interpretations (spurious errors). We propose a
+ heuristic to recognize spurious errors, which has been integrated with our
+ former efficient disambiguation algorithm.
+ </span>
+ </li>
+
<li class="paper">
<span class="paper_author">
Andrea Asperti, Claudio Sacerdoti Coen, Enrico Tassi, Stefano Zacchiroli
</span><br/>
<span class="paper_title">
- The Matita Proof Assistant
+ Crafting a Proof Assistant
</span>
- <a class="paper_download" href="PAPERS/matita.pdf">
+ <a class="paper_download" href="PAPERS/matita_types.pdf">
<span class="pdf_logo">.pdf</span>
</a>
- <a class="paper_download" href="PAPERS/matita.ps">
- <span class="ps_logo">.ps</span>
- </a><br/>
<span class="paper_info">
- Submitted to Journal of Automated Reasoning, Special Issue on User
- Interfaces for Theorem Proving
+ Accepted for publication in the Proceedings of Types 2006: Conference of
+ the Types Project. Nottingham, UK -- April 18-21, 2006.
+ </span>
+ <span class="paper_abstract">
+ Proof assistants are complex applications whose develop-
+ ment has never been properly systematized or documented. This work is
+ a contribution in this direction, based on our experience with the devel-
+ opment of Matita: a new interactive theorem prover based—as Coq—on
+ the Calculus of Inductive Constructions (CIC). In particular, we analyze
+ its architecture focusing on the dependencies of its components, how they
+ implement the main functionalities, and their degree of reusability.
+ The work is a first attempt to provide a ground for a more direct com-
+ parison between different systems and to highlight the common func-
+ tionalities, not only in view of reusability but also to encourage a more
+ systematic comparison of different softwares and architectural solutions.
+ </span>
+ </li>
+
+
+ <li class="paper">
+ <span class="paper_author">
+ Andrea Asperti, Claudio Sacerdoti Coen, Enrico Tassi, Stefano Zacchiroli
</span><br/>
+ <span class="paper_title">
+ User Interaction with the Matita Proof Assistant
+ </span>
+ <a class="paper_download" href="PAPERS/matita.pdf">
+ <span class="pdf_logo">.pdf</span>
+ </a>
+ <span class="paper_info">
+ Accepted for publication in Journal of Automated Reasoning, Special Issue
+ on User Interfaces for Theorem Proving.
+ </span>
<span class="paper_abstract">
- Matita is a new document-centric proof assistant that integrates several
- Mathematical Knowledge Management tools and techniques. In this paper we
- describe the architecture of Matita and the peculiarities of its user
- interface.
+ Matita is a new, document-centric, tactic-based interactive theorem
+ prover. This paper focuses on some of the distinctive features of the user interaction
+ with Matita, mostly characterized by the organization of the library as a search-
+ able knowledge base, the emphasis on a high-quality notational rendering, and the
+ complex interplay between syntax, presentation, and semantics.
</span>
</li>
<a class="paper_download" href="PAPERS/tinycals.pdf">
<span class="pdf_logo">.pdf</span>
</a>
- <a class="paper_download" href="PAPERS/tinycals.ps">
- <span class="ps_logo">.ps</span>
- </a><br/>
<span class="paper_info">
- Submitted to UITP 2006 User Interfaces for Theorem Provers. Seattle, WA
- -- August 21, 2006.
- </span><br/>
+ In Proceedings of UITP 2006: User Interfaces for Theorem Provers. Seattle,
+ WA -- August 21, 2006. ENTCS, Volume 174, Issue 2 (May 2007), Pages 125 -
+ 142, ISSN:1571-0661
+ </span>
<span class="paper_abstract">
Most of the state-of-the-art proof assistants are based on procedural
proof languages, scripts, and rely on LCF tacticals as the primary tool
<a class="paper_download" href="PAPERS/notation.pdf">
<span class="pdf_logo">.pdf</span>
</a>
- <a class="paper_download" href="PAPERS/notation.ps">
- <span class="ps_logo">.ps</span>
- </a><br/>
<span class="paper_info">
Accepted for publication in the proceedings of MKM 2006: The 5th
International Conference on Mathematical Knowledge Management.
Wokingham, UK -- August 11-12, 2006.
- </span><br/>
+ </span>
<span class="paper_abstract">
Mathematical notation is a structured, open, and ambiguous language. In
order to support mathematical notation in MKM applications one must
<a class="paper_download" href="PAPERS/whelp.pdf">
<span class="pdf_logo">.pdf</span>
</a>
- <a class="paper_download" href="PAPERS/whelp.ps">
- <span class="ps_logo">.ps</span>
- </a><br/>
<span class="paper_info">
In Proceedings of TYPES 2004 conference Types for Proofs and Programs.
Paris, France -- December 15-18, 2004. LNCS 3839/2004, Springer-Verlag
Heidelberg, ISBN 3-540-31428-8, pp. 17-32
- </span><br/>
+ </span>
<span class="paper_abstract">
The prototype of a content based search engine for mathematical knowledge
supporting a small set of queries requiring matching and/or typing
<a class="paper_download" href="PAPERS/disambiguation.pdf">
<span class="pdf_logo">.pdf</span>
</a>
- <a class="paper_download" href="PAPERS/disambiguation.ps">
- <span class="ps_logo">.ps</span>
- </a><br/>
<span class="paper_info">
In Proceedings of MKM 2004
Third International Conference on Mathematical Knowledge Management.
September 19th - 21st, 2004 Bialowieza - Poland. LNCS 3119/2004,
Springer-Verlag Heidelberg, ISBN 3-540-23029-7, pp. 347-362
- </span><br/>
+ </span>
<span class="paper_abstract">
Mathematical notation has the characteristic of being ambiguous:
operators can be overloaded and information that can be deduced is often