namespace http://cds.omdoc.org/urtheories

import rules scala://cf.mmt.kwarc.info

theory CF =
   include ?PLF

   constant instance # instance 1
   new    # new 1
   rule rules?NewInstance
   field    # 1 . 2

   
   sequence # var V1; in 2;
   rule rules?Sequence

   None: type
   none: None
  
   assign # 1 = 2
   rule rules?Assignment
   rule rules?AssignmentTerm