Leo-III Version 1.1 (System description)

in IWIL Workshop and LPAR Short Presentations (2017, June 04)

Leo-III is an automated theorem prover for (polymorphic) higher-order logic which supports all common TPTP dialects, including THF, TFF and FOF as well as their rank-1 polymorphic derivatives. It is based ... [more ▼]

Leo-III is an automated theorem prover for (polymorphic) higher-order logic which supports all common TPTP dialects, including THF, TFF and FOF as well as their rank-1 polymorphic derivatives. It is based on a paramodulation calculus with ordering constraints and, in tradition of its predecessor LEO-II, heavily relies on cooperation with external first-order theorem provers. Unlike LEO-II, asynchronous cooperation with typed first-order provers and an agent-based internal cooperation scheme is supported. In this paper, we sketch Leo-III's underlying calculus, survey implementation details and give examples of use. [less ▲]

Capability Discovery for Automated Reasoning Systems

in IWIL Workshop and LPAR Short Presentations (2017, June 04)

Automated reasoning systems such as theorem provers often employ interaction or cooperation with further reasoning software. Whereas in most cases the concrete choice of cooperating software is, to some ... [more ▼]

Automated reasoning systems such as theorem provers often employ interaction or cooperation with further reasoning software. Whereas in most cases the concrete choice of cooperating software is, to some extent, irrelevant, these systems are nevertheless often rigid in practice due to compatibility issues. In order to support more flexible cooperation schemes, a machine-readable description format for automated reasoning systems' capabilities is proposed. Additionally, a simple HTTP-based protocol for system and capability discovery is outlined. Both the format and the protocol are designed to be simple, extensible and easy to use with none to minor modifications for existing reasoning systems. [less ▲]

Tutorial on Reasoning in Expressive Non-Classical Logics with Isabelle/HOL

in Benzmüller, Christoph; Sutcliffe, Geoff; Rojas, Raul (Eds.) GCAI 2016, 2nd Global Conference on Artificial Intelligence (2016, September 29)

Effective Normalization Techniques for HOL

in Olivetti, Nicola; Tiwari, Ashish (Eds.) Automated Reasoning --- 8th International Joint Conference, IJCAR 2016, Coimbra, Portugal, June 27 -- July 2, 2016, Proceedings (2016, June)

Einsatz von Theorembeweisern in der Lehre

in Schwill, Andreas; Lucke, Ulrike (Eds.) Hochschuldidaktik der Informatik: 7. Fachtagung des GI-Fachbereichs Informatik und Ausbildung/Didaktik der Informatik; 13.-14. September 2016 an der Universität Potsdam (2016)

LeoPARD - A Generic Platform for the Implementation of Higher-Order Reasoners

in Kerber, Manfred; Carette, Jacques; Kaliszyk, Cezary (Eds.) et al Intelligent Computer Mathematics - International Conference, CICM 2015, Washington, DC, USA, July 13-17, 2015, Proceedings (2015, June)

The Leo-III Project

in Bolotov, Alexander; Kerber, Manfred (Eds.) Proceedings of the Joint Automated Reasoning Workshop and Deduktionstreffen: As part of the Vienna Summer of Logic – IJCAR 23-24 July 2014 (2014)