Overview

All along the lifecycle of the provers, the following improvements can be achieved :

adding new useful proof rules (to prove sequents that are hard to prove or even not provable at all)
correcting bugs in implementations of existing proof rules
implementing new tools to help the user do proofs
evolving prover API to fit with the needs of prover plug-in developers

Systerel is in charge of prover improvements.

Motivations

Areas of improvement for provers can be summarized as follows:

reducing proving time and effort
providing the user with more efficient proving tools
- reducing proof storage space (proof purging / simplifying / non textual database storage)
- ease manual proof review or reuse (Proof Skeleton View with copy paste)
reflecting prover implementation corrections (versioning)

Part of implemented rules and user interface features come from user feedback, mainly through SourceForge feature requests. SourceForge bugs are also an important input for corrections.