diff --git a/src/built_ins.cpp b/src/built_ins.cpp
index 511a4d4..9d5a82e 100644
--- a/src/built_ins.cpp
+++ b/src/built_ins.cpp
@@ -51,13 +51,6 @@ proc load_built_ins_into_environment(Environment* env) -> void {
     Lisp_Object* evaluated_arguments;
 
 #define cLambda [=](Lisp_Object* arguments, Environment* env) mutable -> Lisp_Object*
-#define report_error(_type) {                                         \
-        if (log_level == Log_Level::Debug) {                          \
-            printf("Error occurred\nin %s:%d\n", __FILE__, __LINE__); \
-        }                                                             \
-        create_error(_type, current_source_code_location);            \
-        return nullptr;                                               \
-    }
 
     proc defun = [&](const char* name, auto fun) {
         define_symbol(
@@ -347,41 +340,6 @@ proc load_built_ins_into_environment(Environment* env) -> void {
 
             return value;
         });
-    // defun("define-upwards", cLambda {
-    //         try {
-    //             arguments_length = list_length(arguments);
-    //         }
-
-    //         if (arguments_length != 2) {
-    //             report_error(Error_Type::Wrong_Number_Of_Arguments);
-    //         }
-
-    //         Lisp_Object* symbol = arguments->value.pair.first;
-
-    //         if (symbol->type == Lisp_Object_Type::Pair) {
-    //             try {
-    //                 symbol = eval_expr(symbol, env);
-    //             }
-    //         }
-
-    //         if (symbol->type != Lisp_Object_Type::Symbol) {
-    //             report_error(Error_Type::Type_Missmatch);
-    //         }
-
-    //         if (!env->parent) {
-    //             report_error(Error_Type::Unknown_Error);
-    //         }
-
-
-    //         Lisp_Object* value = arguments->value.pair.rest->value.pair.first;
-    //         try {
-    //             value = eval_expr(value, env);
-    //         }
-
-    //         define_symbol(symbol, value, env->parent);
-
-    //         return value;
-    //     });
     defun("mutate", cLambda {
             try evaluated_arguments = eval_arguments(arguments, env, &arguments_length);
             try assert_arguments_length(2, arguments_length);
@@ -969,6 +927,5 @@ proc load_built_ins_into_environment(Environment* env) -> void {
             return Memory::create_lisp_object_string(resulting_string);
         });
 
-#undef report_error
 #undef cLambda
 }
diff --git a/todo.org b/todo.org
index 5d6664f..7546b7f 100644
--- a/todo.org
+++ b/todo.org
@@ -1,4 +1,5 @@
-* TODO rename sliem to plisk
+* TODO rename slime to plisk
+* TODO go through sicp and use the examples as test files
 * TODO BUG 1: eval dot notation
 #+BEGIN_SRC lisp
   (eval `(+ . ,(list 1 2 3)))