NEWS
changeset 15677 8770edbf8f28
parent 15570 8d8c70b41bab
child 15696 1da4ce092c0b
equal deleted inserted replaced
15676:042692b6275d 15677:8770edbf8f28
   511 
   511 
   512 * Unions and Intersections over Intervals:
   512 * Unions and Intersections over Intervals:
   513   There is new short syntax "UN i<=n. A" for "UN i:{0..n}. A". There is
   513   There is new short syntax "UN i<=n. A" for "UN i:{0..n}. A". There is
   514   also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
   514   also an x-symbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A"
   515   like in normal math, and corresponding versions for < and for intersection.
   515   like in normal math, and corresponding versions for < and for intersection.
       
   516 
       
   517 * HOL/List: Ordering "lexico" is renamed "lenlex" and the standard
       
   518   lexicographic dictonary ordering has been added as "lexord".
   516 
   519 
   517 * ML: the legacy theory structures Int and List have been removed. They had
   520 * ML: the legacy theory structures Int and List have been removed. They had
   518   conflicted with ML Basis Library structures having the same names.
   521   conflicted with ML Basis Library structures having the same names.
   519 
   522 
   520 * 'refute' command added to search for (finite) countermodels.  Only works
   523 * 'refute' command added to search for (finite) countermodels.  Only works