http://www.internationalskeptics.com/forums/showpost.php?p=4702525&postcount=2777 is the exact answer to your question.
I see that 'exact' is another word you have chosen to redefine.
Let's see. The post you refer to is:
Do you see how I defined Redundancy and Uncertainty in http://www.internationalskeptics.com/forums/showpost.php?p=4694499&postcount=2733 ?
If an element has Redundancy = 1 and Uncertainty = 1 , then it has a crisp id.
For example, each element of the last form of http://www.internationalskeptics.com/forums/showpost.php?p=4694499&postcount=2733 has a crisp id.
So, another indirection. That post referred to has a big image, for some reason, even for the text. The definitions are:
Let redundancy be more then (sic) one copy of the same value can be found.
Let uncertainty be more than one unique value can be found.
So, how does something you have apparently defined as a quality of something get a value of 1? A worked example would help. Give two examples of numbers with a crisp id, and some without.