Rules.algebraTidy --> rules.cleanUpTerms; more understandable so more useful.
Improve documentation and slogan.
Make regrouping automatically clean up terms, which helps
with simple examples.
Comments.
Refactor and rename applyFacts.
Add Path.expand method.
Extend basic simplification to cancel a term subtracted from itself.
Extend functionality of Expr.findMatch.
Support re-association in the simplifier in cases where it can immediately
be followed by arithmetic.
Add a couple of missing facts, plus facts cleanup.
Fix a rule description.
Make regrouping more powerful by incorporating removal of subtraction.
Make the simplifier a bit smarter.
Add to the documentation in the algebra problem pages.
Update introductory information to reflect the new algebra pages.