Source code & exercises for Arend's tutorial.
See index.ard and the online tutorial.
The tutorial code depends on arend-lib. Both arend-lib and the Arend CLI
are part of the Arend repository; after
building it (./gradlew :cli:jarDep) you can typecheck the tutorial with:
java -jar <path-to-Arend>/cli/build/libs/cli-1.11.0-full.jar \
-L <path-to-Arend> -L <path-to-tutorial-code> PartI
-L adds a library search root; the positional argument names the library
(PartI or PartII) by its directory name. Pass -r to force a full
recompile and ignore the .arc binary cache.