diff -r 066e2d4d0de8 -r f75a01ee6c41 doc-src/Codegen/Thy/document/Refinement.tex
--- a/doc-src/Codegen/Thy/document/Refinement.tex	Fri Sep 24 15:11:38 2010 +0200
+++ b/doc-src/Codegen/Thy/document/Refinement.tex	Fri Sep 24 15:11:38 2010 +0200
@@ -65,28 +65,26 @@
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-    fib\ {\isacharcolon}{\isacharcolon}\ Nat\ {\isacharminus}{\isachargreater}\ Nat{\isacharsemicolon}\isanewline
+fib\ {\isacharcolon}{\isacharcolon}\ Nat\ {\isacharminus}{\isachargreater}\ Nat{\isacharsemicolon}\isanewline
 fib\ Zero{\isacharunderscore}nat\ {\isacharequal}\ Zero{\isacharunderscore}nat{\isacharsemicolon}\isanewline
 fib\ {\isacharparenleft}Suc\ Zero{\isacharunderscore}nat{\isacharparenright}\ {\isacharequal}\ Suc\ Zero{\isacharunderscore}nat{\isacharsemicolon}\isanewline
-fib\ {\isacharparenleft}Suc\ {\isacharparenleft}Suc\ n{\isacharparenright}{\isacharparenright}\ {\isacharequal}\ plus{\isacharunderscore}nat\ {\isacharparenleft}fib\ n{\isacharparenright}\ {\isacharparenleft}fib\ {\isacharparenleft}Suc\ n{\isacharparenright}{\isacharparenright}{\isacharsemicolon}
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+fib\ {\isacharparenleft}Suc\ {\isacharparenleft}Suc\ n{\isacharparenright}{\isacharparenright}\ {\isacharequal}\ plus{\isacharunderscore}nat\ {\isacharparenleft}fib\ n{\isacharparenright}\ {\isacharparenleft}fib\ {\isacharparenleft}Suc\ n{\isacharparenright}{\isacharparenright}{\isacharsemicolon}\isanewline%
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 \noindent A more efficient implementation would use dynamic
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-    fib{\isacharunderscore}step\ {\isacharcolon}{\isacharcolon}\ Nat\ {\isacharminus}{\isachargreater}\ {\isacharparenleft}Nat{\isacharcomma}\ Nat{\isacharparenright}{\isacharsemicolon}\isanewline
+fib{\isacharunderscore}step\ {\isacharcolon}{\isacharcolon}\ Nat\ {\isacharminus}{\isachargreater}\ {\isacharparenleft}Nat{\isacharcomma}\ Nat{\isacharparenright}{\isacharsemicolon}\isanewline
 fib{\isacharunderscore}step\ {\isacharparenleft}Suc\ n{\isacharparenright}\ {\isacharequal}\ let\ {\isacharbraceleft}\isanewline
 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ {\isacharparenleft}m{\isacharcomma}\ q{\isacharparenright}\ {\isacharequal}\ fib{\isacharunderscore}step\ n{\isacharsemicolon}\isanewline
 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ {\isacharbraceright}\ in\ {\isacharparenleft}plus{\isacharunderscore}nat\ m\ q{\isacharcomma}\ m{\isacharparenright}{\isacharsemicolon}\isanewline
@@ -179,17 +176,16 @@
 \isanewline
 fib\ {\isacharcolon}{\isacharcolon}\ Nat\ {\isacharminus}{\isachargreater}\ Nat{\isacharsemicolon}\isanewline
 fib\ {\isacharparenleft}Suc\ n{\isacharparenright}\ {\isacharequal}\ fst\ {\isacharparenleft}fib{\isacharunderscore}step\ n{\isacharparenright}{\isacharsemicolon}\isanewline
-fib\ Zero{\isacharunderscore}nat\ {\isacharequal}\ Zero{\isacharunderscore}nat{\isacharsemicolon}
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+fib\ Zero{\isacharunderscore}nat\ {\isacharequal}\ Zero{\isacharunderscore}nat{\isacharsemicolon}\isanewline%
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 \isamarkupsubsection{Datatype refinement%
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-    structure\ Example\ {\isacharcolon}\ sig\isanewline
+structure\ Example\ {\isacharcolon}\ sig\isanewline
 \ \ val\ id\ {\isacharcolon}\ {\isacharprime}a\ {\isacharminus}{\isachargreater}\ {\isacharprime}a\isanewline
 \ \ val\ fold\ {\isacharcolon}\ {\isacharparenleft}{\isacharprime}a\ {\isacharminus}{\isachargreater}\ {\isacharprime}b\ {\isacharminus}{\isachargreater}\ {\isacharprime}b{\isacharparenright}\ {\isacharminus}{\isachargreater}\ {\isacharprime}a\ list\ {\isacharminus}{\isachargreater}\ {\isacharprime}b\ {\isacharminus}{\isachargreater}\ {\isacharprime}b\isanewline
 \ \ val\ rev\ {\isacharcolon}\ {\isacharprime}a\ list\ {\isacharminus}{\isachargreater}\ {\isacharprime}a\ list\isanewline
@@ -381,18 +376,16 @@
 \isanewline
 fun\ enqueue\ x\ {\isacharparenleft}AQueue\ {\isacharparenleft}xs{\isacharcomma}\ ys{\isacharparenright}{\isacharparenright}\ {\isacharequal}\ AQueue\ {\isacharparenleft}x\ {\isacharcolon}{\isacharcolon}\ xs{\isacharcomma}\ ys{\isacharparenright}{\isacharsemicolon}\isanewline
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-end{\isacharsemicolon}\ {\isacharparenleft}{\isacharasterisk}struct\ Example{\isacharasterisk}{\isacharparenright}\isanewline
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 The same techniques can also be applied to types which are not
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-    module\ Example\ where\ {\isacharbraceleft}\isanewline
+module\ Example\ where\ {\isacharbraceleft}\isanewline
 \isanewline
 newtype\ Dlist\ a\ {\isacharequal}\ Dlist\ {\isacharbrackleft}a{\isacharbrackright}{\isacharsemicolon}\isanewline
 \isanewline
@@ -613,18 +605,16 @@
 remove\ {\isacharcolon}{\isacharcolon}\ forall\ a{\isachardot}\ {\isacharparenleft}Eq\ a{\isacharparenright}\ {\isacharequal}{\isachargreater}\ a\ {\isacharminus}{\isachargreater}\ Dlist\ a\ {\isacharminus}{\isachargreater}\ Dlist\ a{\isacharsemicolon}\isanewline
 remove\ x\ dxs\ {\isacharequal}\ Dlist\ {\isacharparenleft}remove{\isadigit{1}}\ x\ {\isacharparenleft}list{\isacharunderscore}of{\isacharunderscore}dlist\ dxs{\isacharparenright}{\isacharparenright}{\isacharsemicolon}\isanewline
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 \begin{isamarkuptext}%
 Typical data structures implemented by representations involving