The CADE-21 automated theorem proving system competition.

The CADE ATP system competition (CASC) is an annual evaluation of fully automatic, first order Automated Theorem Proving (ATP) systems. CASC-21 was the twelfth competition in the CASC series. Twenty ATP systems and system variants competed in the various competition and demonstration divisions. An outline of the competition design, and a commentated summary of the results, are presented. [ABSTRACT FROM AUTHOR]