Trusted Extensions of Interactive Theorem Provers : Workshop Summary

A fundamental strength of interactive theorem provers (ITPs) is the high degree of trust one can place in formalizations carried out in them. ITPs are usually also extensible, both at the logic level and at the implementation level. There is consequently a substantial body of existing and ongoing research into the extension of ITPs while preserving trust. In order to survey existing and new work in this area, we organized the Trusted Extension of Interactive Theorem Provers (TEITP) workshop. As a result of the workshop we have been able to get an overview of the approaches taken by most of the major ITPs. In this document we summarize the meeting and provide some background information for readers unfamiliar with the area.