NEWS
changeset 4824 df8fc4626a9e
parent 4806 79cc986bc4d7
child 4825 e4e56a1bcbe2
equal deleted inserted replaced
4823:588538fb9308 4824:df8fc4626a9e
    13 * Changed wrapper mechanism for the classical reasoner now allows for selected
    13 * Changed wrapper mechanism for the classical reasoner now allows for selected
    14   deletion of wrappers, by introduction of names for wrapper functionals.
    14   deletion of wrappers, by introduction of names for wrapper functionals.
    15   This implies that addbefore, addSbefore, addaltern, and addSaltern now take
    15   This implies that addbefore, addSbefore, addaltern, and addSaltern now take
    16   a pair (name, tactic) as argument, and that adding two tactics with the same
    16   a pair (name, tactic) as argument, and that adding two tactics with the same
    17   name overwrites the first one (emitting a warning).
    17   name overwrites the first one (emitting a warning).
       
    18   type wrapper = (int -> tactic) -> (int -> tactic)
    18   setWrapper, setSWrapper, compWrapper and compSWrapper are replaced by
    19   setWrapper, setSWrapper, compWrapper and compSWrapper are replaced by
    19   addWrapper, addSWrapper: claset * wrapper -> claset
    20   addWrapper, addSWrapper: claset * (string * wrapper) -> claset
    20   delWrapper, delSWrapper: claset *  string -> claset
    21   delWrapper, delSWrapper: claset *  string            -> claset
    21   getWrapper is renamed to appWrappers, getSWrapper to appSWrappers;
    22   getWrapper is renamed to appWrappers, getSWrapper to appSWrappers;
    22 
    23 
    23 * Inductive definitions now handle disjunctive premises correctly (HOL and ZF)
    24 * Inductive definitions now handle disjunctive premises correctly (HOL and ZF)
    24 
    25 
    25 
    26 
    26 *** HOL ***
    27 *** HOL ***
       
    28 
       
    29 * new force_tac (and its derivations Force_tac, force) 
       
    30   combines rewriting and classical reasoning (and whatever other tools)
       
    31   similarly to auto_tac, but is aimed to solve the given subgoal totally.
    27 
    32 
    28 * added option_map_eq_Some to simpset(), option_map_eq_Some RS iffD1 to claset()
    33 * added option_map_eq_Some to simpset(), option_map_eq_Some RS iffD1 to claset()
    29 * New directory HOL/UNITY: Chandy and Misra's UNITY formalism
    34 * New directory HOL/UNITY: Chandy and Misra's UNITY formalism
    30 
    35 
    31 * split_all_tac now fails if there is nothing to split
    36 * split_all_tac is now much faster and fails if there is nothing to split
    32   split_all_tac has moved within claset() from usafe wrappers to safe wrappers
    37   split_all_tac has moved within claset() from usafe wrappers to safe wrappers,
       
    38   which means that !!-bound variables are splitted much more aggressively.
       
    39   If this splitting is not appropriate, use delSWrapper "split_all_tac".
    33 
    40 
    34 * added disj_not1 = "(~P | Q) = (P --> Q)" to the default simpset
    41 * added disj_not1 = "(~P | Q) = (P --> Q)" to the default simpset
    35 
    42 
    36 * HOL/Arithmetic: removed 'pred' (predecessor) function; and generalized
    43 * HOL/Arithmetic: removed 'pred' (predecessor) function; and generalized
    37   some theorems about n-1
    44   some theorems about n-1