typo

book.tex

@@ -22,7 +22,7 @@
 
 \def\racketEd{0}
 \def\pythonEd{1}
-\def\edition{0}
+\def\edition{1}
 
 % material that is specific to the Racket edition of the book
 \newcommand{\racket}[1]{{\if\edition\racketEd{#1}\fi}}
@@ -6497,7 +6497,7 @@ class InterpLif(InterpLvar):
         return not self.interp_exp(v, env)
       case BoolOp(And(), values):
         if self.interp_exp(values[0], env):
-          return self.interp_exp(values[0], env)
+          return self.interp_exp(values[1], env)
         else:
           return False
       case BoolOp(Or(), values):