doc-src/Tutorial/Misc/Itrev.thy

added inform_file_processed, inform_file_retracted;
proper outer syntax setup;
more robust theory loader actions;

Itrev = Main +
consts itrev :: 'a list => 'a list => 'a list
primrec
"itrev []     ys = ys"
"itrev (x#xs) ys = itrev xs (x#ys)"
end