Environment: [x = {a}.y, y =({a}.x + {b}.y) ]
Initial Entities: {a, b}
Context: [({a,b}.{a}.{a,c}.x + {a,b}.{a}.{a}.nill)]
Reactions: ([{a,b}, {c}, {b}])


Digraph > Dot Entities | Context "; " MaskDifference {a, b} > Print