doc-src/Intro/list.thy

default style for user fonts -- to prevent org.gjt.sp.jedit.print.BufferPrintable from choking on null;

List = FOL +
types   list 1
arities list    :: (term)term
consts  Nil     :: "'a list"
        Cons    :: "['a, 'a list] => 'a list" 
end