def is_entailed_by(self, other):
        """ If the other is as or more specific than self"""
        other = BoolCell.coerce(other)
        if self.value == U or other.value == self.value:
            return True
        return False
def is_entailed_by ( self , other ) : other = BoolCell . coerce ( other ) if self . value == U or other . value == self . value : return True return False
If the other is as or more specific than self