src/LCF/ex/ROOT.ML

tuned;
added prompt_state_fn hook;
added kill operation;
provide toplevel node history, nests with proof history;
toplevel prompt includes nest level;
more robust recovery from stale signatures;

(*  Title:      LCF/ex/ROOT.ML
    ID:         $Id$
    Author:     Tobias Nipkow
    Copyright   1991  University of Cambridge

Some examples from Lawrence Paulson's book Logic and Computation.
*)

writeln"Root file for LCF examples";

set proof_timing;
use_thy "Ex1";
use_thy "Ex2";
use_thy "Ex3";
use_thy "Ex4";