(1) added axiom to ringb and theorems to enable algebra to prove the ideal membership problem; (2) Method algebra now calls algebra_tac which first tries to solve a universal formula, then in case of failure trie to solve the ideal membership problem (see HOL/Tools/Groebner_Basis/groebner.ML)
# rsync server configuration
uid = nobody
gid = nobody
use chroot = yes
log file = /tmp/rsyncd.log
read only = true
[isabelle-website]
path = /home/proj/isabelle/website
comment = Isabelle website
[isabelle-distribution]
path = /home/proj/isabelle/website/dist
comment = Isabelle distribution
# Sydney legacy link
[isabelle-dist]
path = /home/proj/isabelle/website
comment = Isabelle website