# projects I've worked on

## formal logic

- Trustworthy Embedded Systems

formal, code-level proofs for systems over 1 million lines of code - L4.verified

verifying a high-performance microkernel - AFP

the archive of formal proofs - Isabelle

generic theorem proving - Verificard

theorem proving for JavaCard

## tools

- JFlex

the fast scanner generator for Java - Grace

generating graphical editors - AutoFocus

rapid prototyping for embedded systems

## computer algebra

- Spock

fast algorithms for sparse polynomials