• Behaviour of Agenda Search
• Data Abstraction
• Node Data Abstraction: Operations
• Abstract Predicate Examples
• Node Data Abstraction:
  Implementations
• Changes
• Modifying node_expand
• Modified Version of node_expand
• Behaviour After Modifying
  Node Data Structure
• Recovering the Solution Path
• Modifications Necessary
• Effect of Adding Parent Info
• Extracting the Path from the Node
• node2path in Action
• Looping Behaviour
• Adding Loop Detection
• Different Ways of Adding Loop Detection
• Maintaining EXCL
• Old/New Code
• Behaviour with Exclusion List
• Putting More Detail into Nodes
• Next Week
• About this document ...