Signed-off-by: Jim Pryor <profjim@jimpryor.net>
What is the type of each of these steps? Well, it will be a function
from the result of the previous step (a list) to a new list: it will
be a function of type `char list -> char list`. We'll call each step
-(or group of steps) a **continuation** of the recipe. So in this
+(or group of steps) a **continuation** of the previous steps. So in this
context, a continuation is a function of type `char list -> char
list`. For instance, the continuation corresponding to the portion of
the recipe below the horizontal line is the function `fun (tail : char