- all languages from the paper are in `tapl/` directory

- see `tapl/README.md` for language reuse information

- tests are in `tapl/tests/` directory

- run all calculi tests with `racket tapl/tests/run-all-tests.rkt`

- mlish language is in `tapl/mlish.rkt`, to make it easier to reuse other langs
 - mlish tests are in `tapl/tests/mlish/`
 - run all mlish tests with `racket tapl/tests/run-all-mlish-tests.rkt`

- alternate syntax implementations is in `define-typed-syntax` branch