diff --git a/compiler+runtime/include/cpp/jank/runtime/module/loader.hpp b/compiler+runtime/include/cpp/jank/runtime/module/loader.hpp
index 53d4d60a..3cab6c7f 100644
--- a/compiler+runtime/include/cpp/jank/runtime/module/loader.hpp
+++ b/compiler+runtime/include/cpp/jank/runtime/module/loader.hpp
@@ -95,9 +95,6 @@ namespace jank::runtime::module
 
     loader(context &rt_ctx, native_persistent_string_view const &ps);
 
-    native_bool is_loaded(native_persistent_string_view const &) const;
-    void set_loaded(native_persistent_string_view const &);
-
     string_result<find_result> find(native_persistent_string_view const &module, origin const ori);
     string_result<void> load(native_persistent_string_view const &module, origin const ori);
 
@@ -115,6 +112,5 @@ namespace jank::runtime::module
     /* This maps module strings to entries. Module strings are like fully qualified Java
      * class names. */
     native_unordered_map<native_persistent_string, entry> entries;
-    native_set<native_persistent_string> loaded;
   };
 }
diff --git a/compiler+runtime/src/cpp/clojure/core_native.cpp b/compiler+runtime/src/cpp/clojure/core_native.cpp
index 8dbd603c..f388ab29 100644
--- a/compiler+runtime/src/cpp/clojure/core_native.cpp
+++ b/compiler+runtime/src/cpp/clojure/core_native.cpp
@@ -255,17 +255,6 @@ namespace clojure::core_native
     return obj::nil::nil_const();
   }
 
-  static object_ptr is_module_loaded(object_ptr const path)
-  {
-    return make_box(__rt_ctx->module_loader.is_loaded(runtime::to_string(path)));
-  }
-
-  static object_ptr set_module_loaded(object_ptr const path)
-  {
-    __rt_ctx->module_loader.set_loaded(runtime::to_string(path));
-    return obj::nil::nil_const();
-  }
-
   static object_ptr compile(object_ptr const path)
   {
     __rt_ctx->compile_module(runtime::to_string(path)).expect_ok();
@@ -465,8 +454,6 @@ jank_object_ptr jank_load_clojure_core_native()
   intern_fn("alias", &core_native::alias);
   intern_fn("refer", &core_native::refer);
   intern_fn("load-module", &core_native::load_module);
-  intern_fn("set-module-loaded", &core_native::set_module_loaded);
-  intern_fn("module-loaded?", &core_native::is_module_loaded);
   intern_fn("compile", &core_native::compile);
 
   /* TODO: jank.math? */
diff --git a/compiler+runtime/src/cpp/jank/runtime/core/seq.cpp b/compiler+runtime/src/cpp/jank/runtime/core/seq.cpp
index 6a0ae325..e64439a2 100644
--- a/compiler+runtime/src/cpp/jank/runtime/core/seq.cpp
+++ b/compiler+runtime/src/cpp/jank/runtime/core/seq.cpp
@@ -674,7 +674,8 @@ namespace jank::runtime
         {
           return typed_s->contains(key);
         }
-        if constexpr(std::same_as<S, obj::persistent_hash_set>)
+        if constexpr(std::same_as<S, obj::persistent_hash_set>
+                     || std::same_as<S, obj::persistent_sorted_set>)
         {
           return typed_s->contains(key);
         }
diff --git a/compiler+runtime/src/cpp/jank/runtime/module/loader.cpp b/compiler+runtime/src/cpp/jank/runtime/module/loader.cpp
index bf004367..dfa6bb3a 100644
--- a/compiler+runtime/src/cpp/jank/runtime/module/loader.cpp
+++ b/compiler+runtime/src/cpp/jank/runtime/module/loader.cpp
@@ -343,16 +343,6 @@ namespace jank::runtime::module
     return boost::filesystem::last_write_time(native_transient_string{ source_path });
   }
 
-  native_bool loader::is_loaded(native_persistent_string_view const &module) const
-  {
-    return loaded.contains(module);
-  }
-
-  void loader::set_loaded(native_persistent_string_view const &module)
-  {
-    loaded.emplace(module);
-  }
-
   string_result<loader::find_result>
   loader::find(native_persistent_string_view const &module, origin const ori)
   {
@@ -440,11 +430,6 @@ namespace jank::runtime::module
 
   string_result<void> loader::load(native_persistent_string_view const &module, origin const ori)
   {
-    if(loader::is_loaded(module))
-    {
-      return ok();
-    }
-
     auto const &found_module{ loader::find(module, ori) };
     if(found_module.is_err())
     {
@@ -477,8 +462,6 @@ namespace jank::runtime::module
       return res;
     }
 
-    loader::set_loaded(module);
-
     return ok();
   }
 
diff --git a/compiler+runtime/src/jank/clojure/core.jank b/compiler+runtime/src/jank/clojure/core.jank
index 2a4c2983..f646ee43 100644
--- a/compiler+runtime/src/jank/clojure/core.jank
+++ b/compiler+runtime/src/jank/clojure/core.jank
@@ -3817,8 +3817,8 @@
 
 (defn- load-all
   "Loads a lib given its name and forces a load of any libs it directly or
-   indirectly loads. If need-ns, ensures that the associated namespace
-   exists after loading. If require, records the load so any duplicate loads
+   indirectly loads. If need-ns?, ensures that the associated namespace
+   exists after loading. If require?, records the load so any duplicate loads
    can be skipped."
   [lib need-ns? require?]
   (swap! *loaded-libs* #(reduce conj %1 %2)