paulson [Tue, 19 Dec 2000 15:14:36 +0100] rev 10700
cancel-factor simproc allows shorter proofs
paulson [Tue, 19 Dec 2000 15:06:59 +0100] rev 10699
more tidying
paulson [Tue, 19 Dec 2000 15:06:14 +0100] rev 10698
cancel-factor simproc allows a shorter proof
wenzelm [Tue, 19 Dec 2000 13:06:49 +0100] rev 10697
improved errors;
nipkow [Mon, 18 Dec 2000 16:45:17 +0100] rev 10696
*** empty log message ***
nipkow [Mon, 18 Dec 2000 16:11:53 +0100] rev 10695
*** empty log message ***
paulson [Mon, 18 Dec 2000 15:00:15 +0100] rev 10694
new simproc for cancelling common factors, etc.
nipkow [Mon, 18 Dec 2000 14:59:05 +0100] rev 10693
moved mk_bin from Numerals to HOLogic
first steps towards rational lin arith
nipkow [Mon, 18 Dec 2000 14:57:58 +0100] rev 10692
added rational arithmetic
nipkow [Mon, 18 Dec 2000 14:57:34 +0100] rev 10691
towards rtional arithmetic