Concepts used to model what a robot "knows" when it has imperfect sensing.

In this context, is a mathematical notation representing the Strong Backprojection of a Goal Set ( XGcap X sub cap G ) . Key Concept: Strong Backprojection ( SBcap S cap B

A is a planning concept used in robotics and control theory to manage uncertainty. It identifies the set of all states from which a goal state can be reached with certainty, regardless of the "actions of nature" (interference or unpredictable variables). Weak Backprojection ( WBcap W cap B ): The set of states from which a goal might be reached. Strong Backprojection ( SBcap S cap B