1 files changed, 4 insertions, 3 deletions

diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/opposite/OppositeRefiner.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/opposite/OppositeRefiner.java
index d09684df..47e3ac6a 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/opposite/OppositeRefiner.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/opposite/OppositeRefiner.java
@@ -1,17 +1,18 @@
 /*
- * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ * SPDX-FileCopyrightText: 2023-2024 The Refinery Authors <https://refinery.tools/>
  *
  * SPDX-License-Identifier: EPL-2.0
  */
 package tools.refinery.store.reasoning.translator.opposite;
 
+import tools.refinery.logic.AbstractValue;
 import tools.refinery.store.reasoning.ReasoningAdapter;
 import tools.refinery.store.reasoning.refinement.AbstractPartialInterpretationRefiner;
 import tools.refinery.store.reasoning.refinement.PartialInterpretationRefiner;
 import tools.refinery.store.reasoning.representation.PartialSymbol;
 import tools.refinery.store.tuple.Tuple;
 
-public class OppositeRefiner<A, C> extends AbstractPartialInterpretationRefiner<A, C> {
+public class OppositeRefiner<A extends AbstractValue<A, C>, C> extends AbstractPartialInterpretationRefiner<A, C> {
         private final PartialInterpretationRefiner<A, C> opposite;
 
         protected OppositeRefiner(ReasoningAdapter adapter, PartialSymbol<A, C> partialSymbol,
@@ -26,7 +27,7 @@ public class OppositeRefiner<A, C> extends AbstractPartialInterpretationRefiner<
                 return opposite.merge(oppositeKey, value);
         }
 
-        public static <A1, C1> Factory<A1, C1> of(PartialSymbol<A1, C1> oppositeSymbol) {
+        public static <A1 extends AbstractValue<A1, C1>, C1> Factory<A1, C1> of(PartialSymbol<A1, C1> oppositeSymbol) {
                 return (adapter, partialSymbol) -> new OppositeRefiner<>(adapter, partialSymbol, oppositeSymbol);
         }
 }