src/HOL/Lambda/Commutation.thy
1996-02-05 clasohm 1996-02-05 expanded tabs; incorporated Konrad's changes
1995-10-25 nipkow 1995-10-25 Moved some thms to Arith and to Trancl.
1995-10-11 nipkow 1995-10-11 Commutation replaces Confluence