../ QED.sty 24-Jun-1996 20:54 32K prooftree-doc.dvi 03-Oct-1995 13:53 7336 prooftree-doc.pdf 19-Mar-2006 18:02 79K prooftree-doc.tex 03-Oct-1995 13:53 5056 prooftree.sty 20-Aug-1996 15:15 12K prooftree.tex 20-Aug-1996 15:15 12K