Sorry another silly question!

        if you défine a "compose" function (compose g f returne g o f), and
ask for 

compose compose compose;;

        you get the expected types in the answer, but each of them is
prefixed by an underscore:

- : ('_a -> '_b) -> ('_c -> '_d -> '_a) -> '_c -> '_d -> '_b = <fun>

        I could not find help on theses _ , which seem to affect nothing,
this triple compose when evaluated works as expected. Is it in the reference
books? in the electronic reference manuel? somewhere in the iria server?

        thanks, and many roars

                        goffinet

Note: camels do roar