until -package:numeric-prelude -package:streaming -package:util -package:scalpel-core -package:free -package:singletons-base is:exact

until p f yields the result of applying f until p holds.
repeat action until result fulfills condition
until p f yields the result of applying f until p holds.
Produce until the given event occurs. When it occurs, inhibit with its value forever.
  • Depends: now until event occurs.
  • Inhibits: forever after event occurs.