There's no Boolean algebra involved in that.
Sure the Bears can (errrr better ....may? ...ahh .... not likely ) defeat the Lions @ home today.
These are the facts as you know Pugger:
Games on the road are difficult. Games on the road to a divisional rival, more so. The Lions swept the Bears last season.
The last time that the Lions swept the Bears in back to back seasons goes way back to the early 1070's if my memory serves me.
We know the Lions history to choke.
Stay tuned.