context: It is probable that Brian is white. We believe that Mary left the football. There is a better than even chance that Bill discarded the milk.
hypothesis: It is unlikely that brian is white, or Mary left the football.
valid_hypothesis: It is almost certain that brian is white, or Mary left the football.
invalid_hypothesis: It is unlikely that brian is white, or Mary left the football.
hypothesis_assertion: Brian is white, or Mary left the football.