1 files changed, 30 insertions, 0 deletions

diff --git a/subprojects/logic/src/main/java/tools/refinery/logic/term/real/RealMinusTerm.java b/subprojects/logic/src/main/java/tools/refinery/logic/term/real/RealMinusTerm.java
new file mode 100644
index 00000000..e3e371c2
--- /dev/null
+++ b/subprojects/logic/src/main/java/tools/refinery/logic/term/real/RealMinusTerm.java
@@ -0,0 +1,30 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.logic.term.real;
+
+import tools.refinery.logic.substitution.Substitution;
+import tools.refinery.logic.term.Term;
+
+public class RealMinusTerm extends RealUnaryTerm {
+        public RealMinusTerm(Term<Double> body) {
+                super(body);
+        }
+
+        @Override
+        protected Term<Double> doSubstitute(Substitution substitution, Term<Double> substitutedBody) {
+                return new RealMinusTerm(substitutedBody);
+        }
+
+        @Override
+        protected Double doEvaluate(Double bodyValue) {
+                return -bodyValue;
+        }
+
+        @Override
+        public String toString() {
+                return "(-%s)".formatted(getBody());
+        }
+}