51. The system according to claim 1 wherein said system further comprises: a forward state rule utilized by a forward directed reasoning function.
51. The system according to claim 1 wherein said system further comprises: a forward state rule utilized by a forward directed reasoning function. 52. The system according to claim 51 wherein said forward state rule further comprises an antecedent rule part comprising rule nodes representing object states comprising a causes relationship to all object states represented by said rule nodes of a consequent rule part.