tuned message -- avoid extra blank lines;

updated to polyml-5.5.0 which reduces chance of HOL-IMP failure (although it is hard to reproduce anyway);

store colors after build

adding further test cases for the set_comprehension_pointfree simproc

refined tactic in set_comprehension_pointfree simproc

adding further test cases to check new functionality of the simproc; strengthened test cases to check the success of the simproc more faithfully

adding postprocessing of computed pointfree expression in set_comprehension_pointfree simproc

extending the setcomprehension_pointfree simproc to handle nesting disjunctions, conjunctions and negations (with contributions from Rafal Kolanski, NICTA); tuned

more informative error of initial/terminal proof steps;

some attempts to unify/simplify pretty_goal;

refined Proof.the_finished_goal with more informative error; more permissive Method.all_assm_tac: do not insist in solving by assumption here to postpone failure; clarified Method.finish_text: no Thm.no_prems filtering here to postpone failure;

tuned signature;

improved adhoc height for small fonts;

further refinement of jEdit line range, avoiding lack of final \n;

more uniform tooltip color;

more NEWS;

merged

disambiguated grammar

tuned proofs

tuned

simplified 'typedef' specifications: discontinued implicit set definition and alternative name;

discontinued typedef with alternative name;

discontinued obsolete typedef (open) syntax;

discontinued typedef with implicit set_def;