more succint formulation of membership for multisets, similar to lists;
discontinued ASCII notation for multiset membership;
more theorems on multisets, dropping redundant interpretation;
modernized notation;
some annotations concerning future work
syntax: glob
*~
*.class
*.jar
*.marks
*.orig
*.rej
.DS_Store
.swp
syntax: regexp
^contrib
^heaps/
^browser_info/
^doc/.*\.dvi
^doc/.*\.eps
^doc/.*\.pdf
^doc/.*\.ps
^src/Tools/jEdit/dist/