System on TPTP

A System on TPTP refers to an automated theorem prover (ATP) or proof assistant that has been formally submitted to, and is available within, the Thousands of Problems for Theorem Provers (TPTP) world. The TPTP is a library of first-order logic (and increasingly higher-order logic) problems, along with associated tools and infrastructure, designed to support the development, testing, and evaluation of automated reasoning systems.

A system becomes a "System on TPTP" by being submitted with its output within the standardized TPTP framework. This allows researchers to compare the performance of different provers on a common set of problems using the same evaluation metrics. The TPTP provides a standard input language (TPTP language) and evaluation procedures, facilitating reproducible research in automated reasoning.

Having a system included "on TPTP" signifies that the prover's developers have made it accessible for the community to use and benchmark, contributing to the collaborative advancement of the field. The TPTP infrastructure provides tools for running provers, parsing their output, and comparing their performance statistics, thereby enabling systematic assessment of automated reasoning capabilities. The term is often encountered in the context of the annual CADE ATP System Competition (CASC), where many systems featured are registered as Systems on TPTP.