diff --git a/src/main/java/models/formulas/DependencyFormula.java b/src/main/java/models/formulas/DependencyFormula.java
index ce737d9..2d0d5b6 100644
--- a/src/main/java/models/formulas/DependencyFormula.java
+++ b/src/main/java/models/formulas/DependencyFormula.java
@@ -1,6 +1,7 @@
 package models.formulas;
 
-import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
 
 import lombok.Getter;
 import models.terms.Dependency;
@@ -16,8 +17,8 @@
 		this.dependency = dependency;
 	}
 	
-	public DependencyFormula(RDLTerm dependingTerm, List<EvaluatableTerm> dependedResources) {
-		this.dependency = new Dependency(dependingTerm, dependedResources);
+	public DependencyFormula(RDLTerm dependingTerm, Set<EvaluatableTerm> dependedResources) {
+		this.dependency = new Dependency(dependingTerm, new TreeSet<>(dependedResources));
 	}
 
 	
diff --git a/src/main/java/models/terms/meta/MetaRDLTerm.java b/src/main/java/models/terms/meta/MetaRDLTerm.java
index 2072bd5..1d11c02 100644
--- a/src/main/java/models/terms/meta/MetaRDLTerm.java
+++ b/src/main/java/models/terms/meta/MetaRDLTerm.java
@@ -53,17 +53,6 @@
 		this.termType = TermType.META_DEPENDENCY;
 	}
 	
-	//list type dependency or set term
-	public MetaRDLTerm(MetaRDLTerm term) {
-		super(new Symbol(":", 1), term.getOrder() - 1, term.getSize());
-		if (term.isDependency()) {
-			this.termType = TermType.META_DEPENDENCY_LIST;
-		} else if (term.isEvaluatableTerm()) {
-			this.termType = TermType.META_EVALUATABLE_TERM_SET;
-		}
-		addChild(term);
-	}
-	
 	//dependency term
 	public MetaRDLTerm(MetaRDLTerm dependingTerm, MetaResource dependedVariable, MetaRDLTerm argumentTerm) {
 		super(new Symbol(":", 3), -1, dependingTerm.getSize() + dependedVariable.getSize() + argumentTerm.getSize());
diff --git a/src/test/java/terms/meta/DependencyTermTest.java b/src/test/java/terms/meta/DependencyTermTest.java
index b4f3ee7..993f94b 100644
--- a/src/test/java/terms/meta/DependencyTermTest.java
+++ b/src/test/java/terms/meta/DependencyTermTest.java
@@ -34,8 +34,8 @@
 		assertEquals(t5, t6);
 		assertFalse(t5.equals(t7));
 		
-		DependencyTerm t8 = new DependencyTerm(t1, d, e);
-		DependencyTerm t9 = new DependencyTerm(t1, d, e);
+		DependencyTerm t8 = new DependencyTerm(t1, t5, t6);
+		DependencyTerm t9 = new DependencyTerm(t1, t6, t5);
 		assertEquals(t8, t9);
 		
 	}