The symbols the version shows: what it and its ancestors insert,
each version's deletions striking what it or its ancestors inserted.
They are worked out once for each state of the edition, and the list
is frozen, since everyone who asks is handed the same one.
The symbols the version shows: what it and its ancestors insert, each version's deletions striking what it or its ancestors inserted. They are worked out once for each state of the edition, and the list is frozen, since everyone who asks is handed the same one.