doc-src/TutorialI/Misc/document/asm_simp.tex

--- a/doc-src/TutorialI/Misc/document/asm_simp.tex	Fri Sep 01 18:29:52 2000 +0200
+++ b/doc-src/TutorialI/Misc/document/asm_simp.tex	Fri Sep 01 19:09:44 2000 +0200
@@ -9,9 +9,9 @@
 \isacommand{by}\ simp%
 \begin{isamarkuptext}%
 \noindent
-The second assumption simplifies to \isa{\mbox{xs}\ {\isacharequal}\ {\isacharbrackleft}{\isacharbrackright}}, which in turn
-simplifies the first assumption to \isa{\mbox{zs}\ {\isacharequal}\ \mbox{ys}}, thus reducing the
-conclusion to \isa{\mbox{ys}\ {\isacharequal}\ \mbox{ys}} and hence to \isa{True}.
+The second assumption simplifies to \isa{xs\ {\isacharequal}\ {\isacharbrackleft}{\isacharbrackright}}, which in turn
+simplifies the first assumption to \isa{zs\ {\isacharequal}\ ys}, thus reducing the
+conclusion to \isa{ys\ {\isacharequal}\ ys} and hence to \isa{True}.
 
 In some cases this may be too much of a good thing and may lead to
 nontermination:%
@@ -20,7 +20,7 @@
 \begin{isamarkuptxt}%
 \noindent
 cannot be solved by an unmodified application of \isa{simp} because the
-simplification rule \isa{\mbox{f}\ \mbox{x}\ {\isacharequal}\ \mbox{g}\ {\isacharparenleft}\mbox{f}\ {\isacharparenleft}\mbox{g}\ \mbox{x}{\isacharparenright}{\isacharparenright}} extracted from the assumption
+simplification rule \isa{f\ x\ {\isacharequal}\ g\ {\isacharparenleft}f\ {\isacharparenleft}g\ x{\isacharparenright}{\isacharparenright}} extracted from the assumption
 does not terminate. Isabelle notices certain simple forms of
 nontermination but not this one. The problem can be circumvented by
 explicitly telling the simplifier to ignore the assumptions:%
@@ -30,17 +30,17 @@
 \noindent
 There are three options that influence the treatment of assumptions:
 \begin{description}
-\item[\isa{(no_asm)}]\indexbold{*no_asm}
+\item[\isa{{\isacharparenleft}no{\isacharunderscore}asm{\isacharparenright}}]\indexbold{*no_asm}
  means that assumptions are completely ignored.
-\item[\isa{(no_asm_simp)}]\indexbold{*no_asm_simp}
+\item[\isa{{\isacharparenleft}no{\isacharunderscore}asm{\isacharunderscore}simp{\isacharparenright}}]\indexbold{*no_asm_simp}
  means that the assumptions are not simplified but
   are used in the simplification of the conclusion.
-\item[\isa{(no_asm_use)}]\indexbold{*no_asm_use}
+\item[\isa{{\isacharparenleft}no{\isacharunderscore}asm{\isacharunderscore}use{\isacharparenright}}]\indexbold{*no_asm_use}
  means that the assumptions are simplified but are not
   used in the simplification of each other or the conclusion.
 \end{description}
-Neither \isa{(no_asm_simp)} nor \isa{(no_asm_use)} allow to simplify the above
-problematic subgoal.
+Neither \isa{{\isacharparenleft}no{\isacharunderscore}asm{\isacharunderscore}simp{\isacharparenright}} nor \isa{{\isacharparenleft}no{\isacharunderscore}asm{\isacharunderscore}use{\isacharparenright}} allow to simplify
+the above problematic subgoal.
 
 Note that only one of the above options is allowed, and it must precede all
 other arguments.%