isabelle update_cartouches -c -t;
more canonical names
modernized header uniformly as section;
tuned document; tuned proofs;
tuned proofs;
tuned headers;
modernized specifications;
replaced a couple of constsdefs by definitions (also some old primrecs by modern ones)
formal markup of @{syntax_const} and @{const_syntax}; authentic syntax for extra robustness;
added signatures; tuned
be explicit about .ML files;
added Statespace library