This paper describes the First-Order Form (FOF) and Clause Normal Form (CNF) parts of the TPTP problem library, and the associated
infrastructure. TPTP v3.5.0 was the last release containing only FOF and CNF problems, and thus serves as the exemplar. This
paper summarizes the history and development of the TPTP, describes the structure and contents of the TPTP, and gives an overview
of TPTP related projects and tools.
Keywords TPTP - ATP system evaluation