NEWS
changeset 53016 fa9c38891cf2
parent 52949 90edb0669845
child 53021 d0fa3f446b9d
equal deleted inserted replaced
53015:a1119cf551e8 53016:fa9c38891cf2
     3 
     3 
     4 New in this Isabelle version
     4 New in this Isabelle version
     5 ----------------------------
     5 ----------------------------
     6 
     6 
     7 *** General ***
     7 *** General ***
       
     8 
       
     9 * Simplified subscripts within identifiers, using plain \<^sub>
       
    10 instead of the second copy \<^isub> and \<^isup>.  Superscripts are
       
    11 only for literal tokens within notation; explicit mixfix annotations
       
    12 for consts or fixed variables may be used as fall-back for unusual
       
    13 names.  Obsolete \<twosuperior> has been expanded to \<^sup>2 in
       
    14 Isabelle/HOL.  INCOMPATIBILITY, use "isabelle update_sub_sup" to
       
    15 standardize symbols as a starting point for further manual cleanup.
       
    16 The ML reference variable "legacy_isub_isup" may be set as temporary
       
    17 workaround, to make the prover accept a subset of the old identifier
       
    18 syntax.
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    19 
     9 * Uniform management of "quick_and_dirty" as system option (see also
    20 * Uniform management of "quick_and_dirty" as system option (see also
    10 "isabelle options"), configuration option within the context (see also
    21 "isabelle options"), configuration option within the context (see also
    11 Config.get in Isabelle/ML), and attribute in Isabelle/Isar.  Minor
    22 Config.get in Isabelle/ML), and attribute in Isabelle/Isar.  Minor
    12 INCOMPATIBILITY, need to use more official Isabelle means to access
    23 INCOMPATIBILITY, need to use more official Isabelle means to access