more precise Local_Theory.level: 1 really means main target and >= 2 nested context; explicit target for context within global theory with after_close = exit to manage the 2 levels involved here; reject "(in target)" for nested contexts more reliably -- difficult to handle due to lack of nested reinit;

more direct property names;

tuned -- less indirection;

tuned blacklisting in relevance filter

refined class handling, to prevent cycles in fact graph

learn from low-level, inside-class facts

tuning

tweaked nicknames

merged

more reactive completion popup by default;