diff --git a/org.omg.sysml/src/org/omg/sysml/generation/SysMLMOF2SysMLText.xtend b/org.omg.sysml/src/org/omg/sysml/generation/SysMLMOF2SysMLText.xtend
index 5184f151e..57b1db6fd 100644
--- a/org.omg.sysml/src/org/omg/sysml/generation/SysMLMOF2SysMLText.xtend
+++ b/org.omg.sysml/src/org/omg/sysml/generation/SysMLMOF2SysMLText.xtend
@@ -27,7 +27,7 @@ class SysMLMOF2SysMLText extends MOF2SysMLText {
 		standard library package SysML {
 			doc 
 			/*
-			 * This package contains a reflective KerML model of the KerML abstract syntax.
+			 * This package contains a reflective SysML model of the SysML abstract syntax.
 			 */
 			 
 			private import ScalarValues::*;
diff --git a/sysml.library/Domain Libraries/Quantities and Units/TensorCalculations.sysml b/sysml.library/Domain Libraries/Quantities and Units/TensorCalculations.sysml
index 4187ac31a..f1e8c853e 100644
--- a/sysml.library/Domain Libraries/Quantities and Units/TensorCalculations.sysml	
+++ b/sysml.library/Domain Libraries/Quantities and Units/TensorCalculations.sysml	
@@ -13,7 +13,7 @@ standard library package TensorCalculations {
     private import MeasurementReferences::CoordinateTransformation;
     
     calc def '[' specializes BaseFunctions::'[' { 
-    	in elements: Number[1..n] ordered; 
+    	in elements: Number[1..n] ordered nonunique; 
     	in mRef: TensorMeasurementReference[1]; 
     	return quantity: TensorQuantityValue[1];
     	private attribute n = mRef.flattenedSize;
diff --git a/sysml.library/Domain Libraries/Quantities and Units/Time.sysml b/sysml.library/Domain Libraries/Quantities and Units/Time.sysml
index f48f0bbb6..4165171ec 100644
--- a/sysml.library/Domain Libraries/Quantities and Units/Time.sysml	
+++ b/sysml.library/Domain Libraries/Quantities and Units/Time.sysml	
@@ -31,7 +31,7 @@ standard library package Time {
 	part def Clock :> Clocks::Clock {
 		doc
 		/*
-		 * A Clock provides a currentTime as a TimeInstantValue that advances montonically over its lifetime.
+		 * A Clock provides a currentTime as a TimeInstantValue that advances monotonically over its lifetime.
 		 */
 	
 		attribute :>> currentTime : TimeInstantValue;
diff --git a/sysml.library/Domain Libraries/Quantities and Units/VectorCalculations.sysml b/sysml.library/Domain Libraries/Quantities and Units/VectorCalculations.sysml
index 16ed8b0c8..79818e652 100644
--- a/sysml.library/Domain Libraries/Quantities and Units/VectorCalculations.sysml	
+++ b/sysml.library/Domain Libraries/Quantities and Units/VectorCalculations.sysml	
@@ -12,7 +12,7 @@ standard library package VectorCalculations {
     private import MeasurementReferences::CoordinateTransformation;
     
     calc def '[' :> BaseFunctions::'[' { 
-    	in elements: Number[1..n] ordered; 
+    	in elements: Number[1..n] ordered nonunique; 
     	in mRef: VectorMeasurementReference[1]; 
     	return quantity : VectorQuantityValue[1];
     	private attribute n = mRef.flattenedSize;
diff --git a/sysml.library/Systems Library/Actions.sysml b/sysml.library/Systems Library/Actions.sysml
index 3e7be628d..65a3b108e 100644
--- a/sysml.library/Systems Library/Actions.sysml	
+++ b/sysml.library/Systems Library/Actions.sysml	
@@ -187,8 +187,9 @@ standard library package Actions {
 	action def SendAction :> Action, SendPerformance {
 		doc
 		/*
-		 * A SendAction is an Action used to type SendActionUsages. It initiates an outgoingTransferFromSelf 
-		 * from a designated sender Occurrence with a given payload, optionally to a designated receiver.
+		 * A SendAction is an Action and SendPerformance used to type SendActionUsages. 
+		 * It initiates an outgoingTransferFromSelf from a designated sender Occurrence 
+		 * with a given payload, optionally to a designated receiver Occurrence.
 		 */
 	
 		in :>> payload [0..*];
@@ -207,8 +208,9 @@ standard library package Actions {
 	action def AcceptMessageAction :> Action, AcceptPerformance {
 		doc
 		/*
-		 * An AcceptMessageAction is an Action that identifies an incomingTransferToSelf
-		 * of a designated receiver Occurrence, providing its payload as output.
+		 * An AcceptMessageAction is an Action and AcceptPerformance that identifies an 
+		 * incomingTransferToSelf of a designated receiver Occurrence, providing its payload 
+		 * as output.
 		 */
 		inout :>> payload;
 		ref acceptedMessage :>> acceptedTransfer: MessageTransfer, MessageAction {
@@ -293,18 +295,21 @@ standard library package Actions {
 		 * 
 		 * Note: Incoming succession connectors to a MergeAction must have source multiplicity 
 		 * 0..1 and subset the incomingHBLink feature inherited from MergePerformance.
+		 * 
+		 * A MergeAction is the ControlAction for a MergeNode. It is a MergePerformance that 
+		 * selects exactly one incoming HappensBeforeLink. Incoming succession connectors to a 
+		 * MergeAction must have source multiplicity 0..1 and subset the incomingHBLink feature 
+		 * inherited from MergePerformance.
 		 */
 	}
 	
 	action def DecisionAction :> ControlAction, DecisionPerformance {
 		doc
 		/*
-		 * A DecisionAction is the ControlAction for a decision node.
-		 * 
-		 * Note: Outgoing succession connectors from a DecisionAction must have target multiplicity
-		 * 0..1 and subset the outgoingHBLink feature inherited from DecisionPerformance.
-		 * If an outgoing succession has a guard, it should have a transitionStep typed by 
-		 * DecisionTransition.
+		 * A DecisionAction is the ControlAction for a DecisionNode. It is a DecisionPerformance that 
+		 * selects one outgoing HappensBeforeLink. Outgoing succession connectors from a DecisionAction 
+		 * must have target multiplicity 0..1 and subset the outgoingHBLink feature inherited from 
+		 * DecisionPerformance.
 		 */
 	}
 	
diff --git a/sysml.library/Systems Library/SysML.sysml b/sysml.library/Systems Library/SysML.sysml
index 03ffd6d2a..4443814ac 100644
--- a/sysml.library/Systems Library/SysML.sysml	
+++ b/sysml.library/Systems Library/SysML.sysml	
@@ -1,7 +1,7 @@
 standard library package SysML {
 	doc 
 	/*
-	 * This package contains a reflective KerML model of the KerML abstract syntax.
+	 * This package contains a reflective SysML model of the SysML abstract syntax.
 	 */
 	 
 	private import ScalarValues::*;