until -package:numeric-prelude -package:base-prelude -package:distribution-opensuse -package:extra -package:clash-prelude -package:llvm-hs-pure -package:dimensional -package:sparse-linear-algebra -package:intro -package:basic-prelude package:dunai
Similar to Yampa's delayed switching. Loses a b in case of an
exception.
Run the first
msf until the second one produces
True
from the output of the first.