chapter AFP

session Smooth_Manifolds = "HOL-Analysis" +
  options [timeout = 1200]
  sessions
    "HOL-Library"
    "HOL-Types_To_Sets"
  theories
    Cotangent_Space
    Product_Manifold
    Sphere
    Projective_Space
  document_files
    "root.bib"
    "root.tex"
