diff --git a/SICP/slide11.tm b/SICP/slide11.tm
index 8b35be2..3fe1566 100644
--- a/SICP/slide11.tm
+++ b/SICP/slide11.tm
@@ -15,14 +15,26 @@
 
       \;
 
-      \;
-
       <doc-data|<doc-title|\<#96F6\>\<#57FA\>\<#7840\>SICP
-      11>|<doc-author|<author-data|<author-name|>>>|<doc-author|<author-data|<author-name|\<#6C88\>\<#6D6A\>\<#718A\>\<#732B\>\<#513F\>>>>|<doc-author|<author-data|<author-name|MathAgape>>>|<doc-subtitle|\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\<#548C\>\<#7B26\>\<#53F7\>\<#6C42\>\<#5BFC\>>>
+      11>|<doc-author|<author-data|<author-name|>>>|<doc-author|<author-data|<author-name|\<#6C88\>\<#6D6A\>\<#718A\>\<#732B\>\<#513F\>>>>|<doc-author|<author-data|<author-name|MathAgape>|<\author-affiliation>
+        \;
+
+        \;
+
+        \;
+
+        \;
+
+        \;
+
+        \;
+
+        \;
+      </author-affiliation>>>|<doc-subtitle|\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\<#548C\>\<#7B26\>\<#53F7\>\<#6C42\>\<#5BFC\>>>
     </slide>
 
     <\slide>
-      <tit|\<#96F6\>\<#57FA\>\<#7840\>SICP\<#FF1A\>\<#7B2C\>10\<#8BFE\>>
+      <tit|\<#96F6\>\<#57FA\>\<#7840\>SICP\<#FF1A\>\<#7B2C\>11\<#8BFE\>>
 
       <\wide-tabular>
         <tformat|<cwith|2|-1|1|-1|cell-height|40px>|<cwith|2|-1|1|-1|cell-vmode|exact>|<table|<row|<\cell>
@@ -33,10 +45,18 @@
           <\large>
             <strong|Introduction to Data Abstraction>
           </large>
+        </cell>>|<row|<\cell>
+          \;
+        </cell>|<\cell>
+          \;
         </cell>>|<row|<\cell>
           <large|<strong|\<#5C42\>\<#6B21\>\<#6027\>\<#6570\>\<#636E\>\<#548C\>\<#95ED\>\<#5305\>\<#6027\>\<#8D28\>>>
         </cell>|<\cell>
           <large|<strong|Hierarchical Data and the Closure Property>>
+        </cell>>|<row|<\cell>
+          \;
+        </cell>|<\cell>
+          \;
         </cell>>|<row|<\cell>
           <large|<strong|\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>>>
         </cell>|<\cell>
@@ -108,7 +128,7 @@
         <\input>
           \<gtr\>\ 
         <|input>
-          \;
+          (list? )
         </input>
       </session>
 
@@ -120,7 +140,8 @@
     <\slide>
       <tit|\<#5B9A\>\<#4E49\>\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\V\<#6784\>\<#9020\>\<#51FD\>\<#6570\>quote>
 
-      <marked|<scm|'>>\<#662F\>\<#4E00\>\<#79CD\>\<#8BED\>\<#6CD5\>\<#7CD6\>\<#8863\>\<#FF0C\>\<#5982\>\<#679C\>\<#6CA1\>\<#6709\><marked|<scm|'>>\<#FF0C\>\<#4E5F\>\<#53EF\>\<#4EE5\>\<#4F7F\>\<#7528\><scm|quote>\<#3002\>Scala\<#91CC\>\<#9762\>\<#4E5F\>\<#6709\>\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\<#3002\>
+      <marked|<scm|'>>\<#662F\>\<#4E00\>\<#79CD\>\<#8BED\>\<#6CD5\>\<#7CD6\>\<#8863\>\<#FF0C\>\<#5982\>\<#679C\>\<#6CA1\>\<#6709\><marked|<scm|'>>\<#FF0C\>\<#4E5F\>\<#53EF\>\<#4EE5\>\<#4F7F\>\<#7528\><scm|quote>\<#3002\>Scala\<#91CC\>\<#9762\>\<#4E5F\>\<#6709\>\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\<#3002\>SRFI-1
+      List
 
       <\with|par-columns|2>
         <\session|s7|default>
@@ -169,7 +190,7 @@
           <|folded-io>
             (eq? 1 (quote 1))
           <|folded-io>
-            #t
+            #f
           </folded-io>
 
           <\folded-io>
@@ -204,13 +225,13 @@
             #f
           </folded-io>
 
-          <\unfolded-io>
+          <\folded-io>
             \<gtr\>\ 
-          <|unfolded-io>
+          <|folded-io>
             ''
-          <|unfolded-io>
+          <|folded-io>
             #\<eof\>
-          </unfolded-io>
+          </folded-io>
 
           <\input>
             \<gtr\>\ 
@@ -220,7 +241,9 @@
         </session>
       </with>
 
-      \<#5B57\>\<#9762\>\<#91CF\>\<#5728\>\<#5F15\>\<#7528\>\<#4E4B\>\<#540E\>\<#FF0C\>\<#8FD8\>\<#662F\>\<#5B57\>\<#9762\>\<#91CF\>\<#3002\>\<#7B26\>\<#53F7\>\<#5728\>\<#5F15\>\<#7528\>\<#4E4B\>\<#540E\>\<#FF0C\>\<#5219\>\<#53D8\>\<#6210\>\<#4E86\>\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\<#3002\>
+      \<#5B57\>\<#9762\>\<#91CF\>\<#FF08\>literally\<#FF09\>\<#5728\>\<#5F15\>\<#7528\>\<#FF08\>\<#4E24\>\<#6B21\>\<#5F15\>\<#7528\>\<#FF1F\>\<#FF09\>\<#4E4B\>\<#540E\>\<#FF0C\>\<#8FD8\>\<#662F\>\<#5B57\>\<#9762\>\<#91CF\>\<#3002\>\<#7B26\>\<#53F7\>\<#5728\>\<#5F15\>\<#7528\>\<#4E4B\>\<#540E\>\<#FF0C\>\<#5219\>\<#53D8\>\<#6210\>\<#4E86\>\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\<#3002\>
+
+      \;
     </slide>
 
     <\slide>
@@ -274,20 +297,14 @@
         <|folded-io>
           (quasiquote (unquote a))
         <|folded-io>
-          3
+          1
         </folded-io>
-
-        <\input>
-          \<gtr\>\ 
-        <|input>
-          \;
-        </input>
       </session>
 
-      \<#8BD5\>\<#8BD1\>\<#FF1A\>quote\<#4E3A\>\<#5F15\>\<#7528\>\<#FF0C\>unquote\<#4E3A\>\<#89E3\>\<#5F15\>\<#7528\>\<#FF0C\>quasiquote\<#4E3A\>\<#53CD\>\<#5E94\>\<#7528\>\<#3002\><marked|<scm|'>>
+      \<#8BD5\>\<#8BD1\>\<#FF1A\>quote\<#4E3A\>\<#5F15\>\<#7528\>\<#FF0C\>unquote\<#4E3A\>\<#89E3\>\<#5F15\>\<#7528\>\<#FF0C\>quasiquote\<#4E3A\>\<#51C6\>\<#5F15\>\<#7528\>\<#3002\><marked|<scm|'>>
       \<#662F\>\<#5F15\>\<#53F7\>\<#FF0C\><marked|<scm|,>>
       \<#662F\>\<#89E3\>\<#5F15\>\<#53F7\>\<#FF0C\><marked|<scm|`>>
-      \<#662F\>\<#53CD\>\<#5F15\>\<#53F7\>\<#3002\>
+      \<#662F\>\<#51C6\>\<#5F15\>\<#53F7\>\<#3002\>
     </slide>
 
     <\slide>
@@ -342,21 +359,17 @@
       </session>
 
       <\scm-code>
-        ' # quote
+        ' ; quote
 
-        ` # quasiquote
+        ` ; quasiquote
 
-        , # unquote
+        , ; unquote
       </scm-code>
-
-      \;
     </slide>
 
     <\slide>
       <tit|\<#5B9A\>\<#4E49\>\<#7B26\>\<#53F7\>\<#6570\>\<#636E\>\V\<#5728\>\<#5217\>\<#8868\>\<#4E2D\>\<#7406\>\<#89E3\>\<#9009\>\<#62E9\>\<#51FD\>\<#6570\>>
 
-      \;
-
       <\with|par-columns|2>
         <\session|s7|default>
           <\folded-io>
@@ -370,9 +383,17 @@
           <\folded-io>
             \<gtr\>\ 
           <|folded-io>
-            (define a 3)
+            (define a 4)
           <|folded-io>
-            3
+            4
+          </folded-io>
+
+          <\folded-io>
+            \<gtr\>\ 
+          <|folded-io>
+            `(+ ,(+ a 1) 1)
+          <|folded-io>
+            (+ 5 1)
           </folded-io>
 
           <\folded-io>
@@ -380,7 +401,7 @@
           <|folded-io>
             `(+ ,a 1)
           <|folded-io>
-            (+ 3 1)
+            (+ 4 1)
           </folded-io>
 
           <\folded-io>
@@ -388,14 +409,12 @@
           <|folded-io>
             (eval `(+ ,a 1))
           <|folded-io>
-            4
+            5
           </folded-io>
         </session>
 
-        \;
-
         <\equation*>
-          <frac|5+4+<around*|(|2-<around*|(|3-<around*|(|6+<frac|4|5>|)>|)>|)>|3<around*|(|6-2|)><around*|(|2-7|)>>
+          <frac|5+4+0*<around*|(|2-<around*|(|3-<around*|(|6+<frac|4|5>|)>|)>|)>|3<around*|(|6-2|)><around*|(|2-7|)>>
         </equation*>
       </with>
 
@@ -455,29 +474,29 @@
       <tit|\<#7B26\>\<#53F7\>\<#6C42\>\<#5BFC\>\V\<#5E94\>\<#7528\>>
 
       <\session|s7|default>
-        <\input>
+        <\folded-io>
           \<gtr\>\ 
-        <|input>
+        <|folded-io>
           (deriv '(+ x 3) 'x)
-        </input>
+        <|folded-io>
+          (+ 1 0)
+        </folded-io>
 
-        <\input>
+        <\folded-io>
           \<gtr\>\ 
-        <|input>
+        <|folded-io>
           (deriv '(* x y) 'x)
-        </input>
+        <|folded-io>
+          (+ (* x 0) (* 1 y))
+        </folded-io>
 
-        <\input>
+        <\folded-io>
           \<gtr\>\ 
-        <|input>
+        <|folded-io>
           (deriv '(* (* x y) (+ x 3)) 'x)
-        </input>
-
-        <\input>
-          \<gtr\>\ 
-        <|input>
-          \;
-        </input>
+        <|folded-io>
+          (+ (* (* x y) (+ 1 0)) (* (+ (* x 0) (* 1 y)) (+ x 3)))
+        </folded-io>
       </session>
 
       <\session|maxima|default>
@@ -495,35 +514,37 @@
         </output>
 
         <\folded-io>
-          <with|color|red|(<with|math-font-family|rm|%i>1) >
+          <with|color|red|(<with|math-font-family|rm|%i>4) >
         <|folded-io>
           diff(<math|x+3>)
         <|folded-io>
-          <math|<with|math-display|true|<text|<with|font-family|tt|color|red|(<with|math-font-family|rm|%o1>)
+          <math|<with|math-display|true|<text|<with|font-family|tt|color|red|(<with|math-font-family|rm|%o4>)
           >>d*x>>
         </folded-io>
 
         <\folded-io>
-          <with|color|red|(<with|math-font-family|rm|%i>2) >
+          <with|color|red|(<with|math-font-family|rm|%i>5) >
         <|folded-io>
           diff(<math|x*y>,x)
         <|folded-io>
-          \;
-
-          \ <math|<with|math-display|true|<text|<with|font-family|tt|color|red|(<with|math-font-family|rm|%o2>)
+          <math|<with|math-display|true|<text|<with|font-family|tt|color|red|(<with|math-font-family|rm|%o5>)
           >>y>>
         </folded-io>
 
         <\folded-io>
-          <with|color|red|(<with|math-font-family|rm|%i>3) >
+          <with|color|red|(<with|math-font-family|rm|%i>6) >
         <|folded-io>
           diff(<math|x*y*<around*|(|x+3|)>>,x)
         <|folded-io>
-          \;
-
-          \ <math|<with|math-display|true|<text|<with|font-family|tt|color|red|(<with|math-font-family|rm|%o3>)
+          <math|<with|math-display|true|<text|<with|font-family|tt|color|red|(<with|math-font-family|rm|%o6>)
           >><around*|(|x+3|)>*y+x*y>>
         </folded-io>
+
+        <\input>
+          <with|color|red|(<with|math-font-family|rm|%i>7) >
+        <|input>
+          \;
+        </input>
       </session>
     </slide>
 
@@ -531,9 +552,9 @@
       <tit|\<#7B26\>\<#53F7\>\<#6C42\>\<#5BFC\>\V\<#5B9E\>\<#73B0\>>
 
       <\session|s7|default>
-        <\folded-io>
+        <\unfolded-io>
           \<gtr\>\ 
-        <|folded-io>
+        <|unfolded-io>
           (define (deriv exp var)
 
           \ \ (cond ((number? exp) 0)
@@ -565,9 +586,9 @@
           \ \ \ \ \ \ \ \ (else
 
           \ \ \ \ \ \ \ \ \ (error "unknown expression type -- DERIV" exp))))
-        <|folded-io>
+        <|unfolded-io>
           deriv
-        </folded-io>
+        </unfolded-io>
       </session>
     </slide>