bool list_of_symbols_p(struct Expr obj);
bool lambda_p(struct Expr obj);
-bool is_lambda(struct Cons *cons);
bool is_special(const char *name);
long int length_of_list(struct Expr obj);
struct Expr assoc(struct Expr key, struct Expr alist);
-struct Expr
-format_list(Gc *gc, const char *format, ...);
+struct Expr list(Gc *gc, const char *format, ...);
+
+struct Expr bool_as_expr(Gc *gc, bool condition);
#endif // BUILTINS_H_