Add icon for interface.
(* Title: CTT/ex/ROOT.ML
ID: $Id$
Author: Lawrence C Paulson, Cambridge University Computer Laboratory
Copyright 1991 University of Cambridge
Executes all examples for Constructive Type Theory.
*)
print_depth 2;
time_use "typechk.ML";
time_use "elim.ML";
time_use "equal.ML";
time_use "synth.ML";