
diff -r 179ff9cb160b -r 5b25fee0362c doc-src/IsarRef/Thy/document/Proof.tex
--- a/doc-src/IsarRef/Thy/document/Proof.tex	Wed Mar 04 10:43:39 2009 +0100
+++ b/doc-src/IsarRef/Thy/document/Proof.tex	Wed Mar 04 10:45:52 2009 +0100
@@ -3,8 +3,6 @@
 \def\isabellecontext{Proof}%
 %
 \isadelimtheory
-\isanewline
-\isanewline
 %
 \endisadelimtheory
 %
@@ -20,7 +18,7 @@
 %
 \endisadelimtheory
 %
-\isamarkupchapter{Proofs%
+\isamarkupchapter{Proofs \label{ch:proofs}%
 }
 \isamarkuptrue%
 %
@@ -28,8 +26,8 @@
 Proof commands perform transitions of Isar/VM machine
   configurations, which are block-structured, consisting of a stack of
   nodes with three main components: logical proof context, current
-  facts, and open goals.  Isar/VM transitions are \emph{typed}
-  according to the following three different modes of operation:
+  facts, and open goals.  Isar/VM transitions are typed according to
+  the following three different modes of operation:
 
   \begin{description}
 
@@ -49,13 +47,17 @@
 
   \end{description}
 
-  The proof mode indicator may be read as a verb telling the writer
-  what kind of operation may be performed next.  The corresponding
-  typings of proof commands restricts the shape of well-formed proof
-  texts to particular command sequences.  So dynamic arrangements of
-  commands eventually turn out as static texts of a certain structure.
-  \Appref{ap:refcard} gives a simplified grammar of the overall
-  (extensible) language emerging that way.%
+  The proof mode indicator may be understood as an instruction to the
+  writer, telling what kind of operation may be performed next.  The
+  corresponding typings of proof commands restricts the shape of
+  well-formed proof texts to particular command sequences.  So dynamic
+  arrangements of commands eventually turn out as static texts of a
+  certain structure.
+
+  \Appref{ap:refcard} gives a simplified grammar of the (extensible)
+  language emerging that way from the different types of proof
+  commands.  The main ideas of the overall Isar framework are
+  explained in \chref{ch:isar-framework}.%
 \end{isamarkuptext}%
 \isamarkuptrue%
 %
@@ -691,7 +693,6 @@
     \indexdef{}{method}{assumption}\hypertarget{method.assumption}{\hyperlink{method.assumption}{\mbox{\isa{assumption}}}} & : & \isa{method} \\
     \indexdef{}{method}{this}\hypertarget{method.this}{\hyperlink{method.this}{\mbox{\isa{this}}}} & : & \isa{method} \\
     \indexdef{}{method}{rule}\hypertarget{method.rule}{\hyperlink{method.rule}{\mbox{\isa{rule}}}} & : & \isa{method} \\
-    \indexdef{}{method}{iprover}\hypertarget{method.iprover}{\hyperlink{method.iprover}{\mbox{\isa{iprover}}}} & : & \isa{method} \\[0.5ex]
     \indexdef{Pure}{attribute}{intro}\hypertarget{attribute.Pure.intro}{\hyperlink{attribute.Pure.intro}{\mbox{\isa{intro}}}} & : & \isa{attribute} \\
     \indexdef{Pure}{attribute}{elim}\hypertarget{attribute.Pure.elim}{\hyperlink{attribute.Pure.elim}{\mbox{\isa{elim}}}} & : & \isa{attribute} \\
     \indexdef{Pure}{attribute}{dest}\hypertarget{attribute.Pure.dest}{\hyperlink{attribute.Pure.dest}{\mbox{\isa{dest}}}} & : & \isa{attribute} \\
@@ -706,8 +707,6 @@
     ;
     'rule' thmrefs?
     ;
-    'iprover' ('!' ?) (rulemod *)
-    ;
     rulemod: ('intro' | 'elim' | 'dest') ((('!' | () | '?') nat?) | 'del') ':' thmrefs
     ;
     ('intro' | 'elim' | 'dest') ('!' | () | '?') nat?
@@ -762,26 +761,11 @@
   default behavior of \hyperlink{command.proof}{\mbox{\isa{\isacommand{proof}}}} and ``\hyperlink{command.ddot}{\mbox{\isa{\isacommand{{\isachardot}{\isachardot}}}}}'' 
   (double-dot) steps (see \secref{sec:proof-steps}).
   
-  \item \hyperlink{method.iprover}{\mbox{\isa{iprover}}} performs intuitionistic proof search,
-  depending on specifically declared rules from the context, or given
-  as explicit arguments.  Chained facts are inserted into the goal
-  before commencing proof search; ``\hyperlink{method.iprover}{\mbox{\isa{iprover}}}\isa{{\isachardoublequote}{\isacharbang}{\isachardoublequote}}''
-  means to include the current \hyperlink{fact.prems}{\mbox{\isa{prems}}} as well.
-  
-  Rules need to be classified as \hyperlink{attribute.Pure.intro}{\mbox{\isa{intro}}},
-  \hyperlink{attribute.Pure.elim}{\mbox{\isa{elim}}}, or \hyperlink{attribute.Pure.dest}{\mbox{\isa{dest}}}; here the
-  ``\isa{{\isachardoublequote}{\isacharbang}{\isachardoublequote}}'' indicator refers to ``safe'' rules, which may be
-  applied aggressively (without considering back-tracking later).
-  Rules declared with ``\isa{{\isachardoublequote}{\isacharquery}{\isachardoublequote}}'' are ignored in proof search (the
-  single-step \hyperlink{method.rule}{\mbox{\isa{rule}}} method still observes these).  An
-  explicit weight annotation may be given as well; otherwise the
-  number of rule premises will be taken into account here.
-  
   \item \hyperlink{attribute.Pure.intro}{\mbox{\isa{intro}}}, \hyperlink{attribute.Pure.elim}{\mbox{\isa{elim}}}, and
   \hyperlink{attribute.Pure.dest}{\mbox{\isa{dest}}} declare introduction, elimination, and
-  destruct rules, to be used with the \hyperlink{method.rule}{\mbox{\isa{rule}}} and \hyperlink{method.iprover}{\mbox{\isa{iprover}}} methods.  Note that the latter will ignore rules declared
-  with ``\isa{{\isachardoublequote}{\isacharquery}{\isachardoublequote}}'', while ``\isa{{\isachardoublequote}{\isacharbang}{\isachardoublequote}}''  are used most
-  aggressively.
+  destruct rules, to be used with method \hyperlink{method.rule}{\mbox{\isa{rule}}}, and similar
+  tools.  Note that the latter will ignore rules declared with
+  ``\isa{{\isachardoublequote}{\isacharquery}{\isachardoublequote}}'', while ``\isa{{\isachardoublequote}{\isacharbang}{\isachardoublequote}}''  are used most aggressively.
   
   The classical reasoner (see \secref{sec:classical}) introduces its
   own variants of these attributes; use qualified names to access the
@@ -966,7 +950,7 @@
   \begin{matharray}{l}
     \isa{{\isachardoublequote}{\isasymlangle}using\ b\isactrlsub {\isadigit{1}}\ {\isasymdots}\ b\isactrlsub k{\isasymrangle}{\isachardoublequote}}~~\hyperlink{command.obtain}{\mbox{\isa{\isacommand{obtain}}}}~\isa{{\isachardoublequote}x\isactrlsub {\isadigit{1}}\ {\isasymdots}\ x\isactrlsub m\ {\isasymWHERE}\ a{\isacharcolon}\ {\isasymphi}\isactrlsub {\isadigit{1}}\ {\isasymdots}\ {\isasymphi}\isactrlsub n\ \ {\isasymlangle}proof{\isasymrangle}\ {\isasymequiv}{\isachardoublequote}} \\[1ex]
     \quad \hyperlink{command.have}{\mbox{\isa{\isacommand{have}}}}~\isa{{\isachardoublequote}{\isasymAnd}thesis{\isachardot}\ {\isacharparenleft}{\isasymAnd}x\isactrlsub {\isadigit{1}}\ {\isasymdots}\ x\isactrlsub m{\isachardot}\ {\isasymphi}\isactrlsub {\isadigit{1}}\ {\isasymLongrightarrow}\ {\isasymdots}\ {\isasymphi}\isactrlsub n\ {\isasymLongrightarrow}\ thesis{\isacharparenright}\ {\isasymLongrightarrow}\ thesis{\isachardoublequote}} \\
-    \quad \hyperlink{command.proof}{\mbox{\isa{\isacommand{proof}}}}~\isa{succeed} \\
+    \quad \hyperlink{command.proof}{\mbox{\isa{\isacommand{proof}}}}~\hyperlink{method.succeed}{\mbox{\isa{succeed}}} \\
     \qquad \hyperlink{command.fix}{\mbox{\isa{\isacommand{fix}}}}~\isa{thesis} \\
     \qquad \hyperlink{command.assume}{\mbox{\isa{\isacommand{assume}}}}~\isa{{\isachardoublequote}that\ {\isacharbrackleft}Pure{\isachardot}intro{\isacharquery}{\isacharbrackright}{\isacharcolon}\ {\isasymAnd}x\isactrlsub {\isadigit{1}}\ {\isasymdots}\ x\isactrlsub m{\isachardot}\ {\isasymphi}\isactrlsub {\isadigit{1}}\ {\isasymLongrightarrow}\ {\isasymdots}\ {\isasymphi}\isactrlsub n\ {\isasymLongrightarrow}\ thesis{\isachardoublequote}} \\
     \qquad \hyperlink{command.then}{\mbox{\isa{\isacommand{then}}}}~\hyperlink{command.show}{\mbox{\isa{\isacommand{show}}}}~\isa{thesis} \\




