clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
chapter CCL
session CCL = Pure +
description {*
Author: Martin Coen, Cambridge University Computer Laboratory
Copyright 1993 University of Cambridge
Classical Computational Logic based on First-Order Logic.
A computational logic for an untyped functional language with
evaluation to weak head-normal form.
*}
options [document = false]
theories
Wfd
Fix
(* Examples for Classical Computational Logic *)
"ex/Nat"
"ex/List"
"ex/Stream"
"ex/Flag"