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diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EEquations.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EEquations.java
new file mode 100644
index 000000000..41cea63ff
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EEquations.java
@@ -0,0 +1,124 @@
+package org.simantics.scl.compiler.elaboration.expressions;
+
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;
+import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
+import org.simantics.scl.compiler.elaboration.contexts.TypingContext;
+import org.simantics.scl.compiler.elaboration.equation.Equation;
+import org.simantics.scl.compiler.errors.Locations;
+import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;
+import org.simantics.scl.compiler.types.Type;
+import org.simantics.scl.compiler.types.Types;
+import org.simantics.scl.compiler.types.exceptions.MatchException;
+
+import gnu.trove.map.hash.TObjectIntHashMap;
+import gnu.trove.set.hash.THashSet;
+import gnu.trove.set.hash.TIntHashSet;
+
+public class EEquations extends SimplifiableExpression {
+
+    public Equation[] equations;
+    public Type effect = Types.NO_EFFECTS;
+    
+    public EEquations(Equation[] equations) {
+        this.equations = equations;
+    }
+    
+    public EEquations(long location, Equation[] equations) {
+        this(equations);
+        this.location = location;
+    }
+
+    @Override
+    public Expression resolve(TranslationContext context) {
+        for(Equation equation : equations)
+            equation.resolve(context);       
+        return this;
+    }
+
+    @Override
+    public void setLocationDeep(long loc) {
+        if(location == Locations.NO_LOCATION) {
+            location = loc;
+            for(Equation equation : equations)
+                equation.setLocationDeep(loc);
+        }
+    }
+
+    @Override
+    public Expression accept(ExpressionTransformer transformer) {
+        return transformer.transform(this);
+    }
+
+    @Override
+    public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {
+        for(Equation equation : equations)
+            equation.collectRefs(allRefs, refs);        
+    }
+
+    @Override
+    public void collectVars(TObjectIntHashMap<Variable> allVars, TIntHashSet vars) {
+        for(Equation equation : equations)
+            equation.collectVars(allVars, vars);
+    }
+
+    @Override
+    public void forVariables(VariableProcedure procedure) {
+        for(Equation equation : equations)
+            equation.forVariables(procedure);
+    }
+
+    @Override
+    protected void updateType() throws MatchException {
+        setType(Types.UNIT);
+    }
+
+    @Override
+    public void collectFreeVariables(THashSet<Variable> vars) {
+        for(Equation equation : equations)
+            equation.collectFreeVariables(vars);
+    }
+
+    @Override
+    public Expression decorate(ExpressionDecorator decorator) {
+        if(decorator.decorateSubstructure(this)) {
+            for(Equation equation : equations)
+                 equation.decorate(decorator);
+        }
+        return this;
+    }
+
+    @Override
+    public void collectEffects(THashSet<Type> effects) {
+        for(Equation equation : equations)
+            equation.collectEffects(effects);
+    }
+
+    @Override
+    public void accept(ExpressionVisitor visitor) {
+        visitor.visit(this);
+    }
+    
+    @Override
+    public Expression inferType(TypingContext context) {
+        context.declareEffect(this.location, effect);
+        for(Equation equation : equations)
+            equation.checkType(context);
+        return this;
+    }
+    
+    @Override
+    public Expression simplify(SimplificationContext context) {
+        context.getErrorLog().log(location, "Equations should be transformed into other expressions before simplification phase.");
+        return Expressions.tuple();
+    }
+    
+    @Override
+    public Expression replace(ReplaceContext context) {
+        Equation[] newEquations = new Equation[equations.length];
+        for(int i=0;i<equations.length;++i)
+            newEquations[i] = equations[i].replace(context);
+        return new EEquations(location, newEquations);
+    }
+
+}