The TPTP Problem Library: CNF Release v1.2.1

Geoff Sutcliffe, Christian Suttner

Research output: Contribution to journalArticlepeer-review

197 Scopus citations


This paper provides a detailed description of the CNF part of the TPTP Problem Library for automated theorem-proving systems. The library is available via the Internet and forms a common basis for development and experimentation with automated theorem provers. This paper explains the motivations and reasoning behind the development of the TPTP (thus implicitly explaining the design decisions made) and describes the TPTP contents and organization. It also provides guidelines for obtaining and using the library, summary statistics about release v1.2.1, and an overview of the tptp2X utility program. References for all the sources of TPTP problems are provided.

Original languageEnglish (US)
Pages (from-to)177-203
Number of pages27
JournalJournal of Automated Reasoning
Issue number2
StatePublished - Jan 1 1998
Externally publishedYes


  • Experimental evaluation
  • Problem library
  • TPTP

ASJC Scopus subject areas

  • Software
  • Computational Theory and Mathematics
  • Artificial Intelligence


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