chapter AFP

session Progress_Tracking = Nested_Multisets_Ordinals +
  description \<open>Safety of Timely Dataflow's Progress Tracking Protocol\<close>
  options [timeout = 1200]
  sessions
    "HOL-Library"
  theories
    Exchange_Abadi
    Combined
  document_files
    "root.tex"
    "root.bib"
