isabelle update_cartouches -c;
more reorganization around sorted_wrt
moved lemmas
derive lemmas uniformly
converted lookup to cmp
no CRLF
tuned names and optimized comparison order
tuned
added red black trees --HG-- extra : rebase_source : 28e43c87d5eb14090fa401987d8131c2067f6ab7
New subdirectory for functional data structures