mathematical symbols for Isabelle/ZF example theories
eliminated hard tabulators, guessing at each author's individual tab-width; tuned headers;
dropped locale (open)
modernized specifications; removed legacy ML bindings;
migrated theory headers to new format
Fixed quantified variable name preservation for ball and bex (bounded quants) Requires tweaking of other scripts. Also routine tidying.
lexical tidying
Isar version of AC
X-symbols for set theory
new file AC/WO1_WO7.thy