code snippets for Lecture 4

These are also hyperlinked from the pdf if your reader is set up right (tested with evince, mupdf / emacs-pdftools, on Linux).

snippet-002.rkt

snippet-003.rkt

snippet-012.rkt

snippet-021.rkt

snippet-022.rkt

snippet-023.rkt

snippet-024.rkt

snippet-025.rkt

snippet-026.rkt

snippet-027.rkt

snippet-028.rkt

snippet-029.rkt

snippet-030.rkt

snippet-031.rkt

snippet-032.rkt

snippet-033.rkt

snippet-034.rkt

type.rkt