MMP.10:8 - Common Anti-Patterns and How to Avoid Them

Failure	Why it changes the result	Repair
Use separate bounds in place of a joint relation.	The same assignment can violate the lost total or coupling.	Retain the relation with its shared variables.
Number labels and use their arithmetic as a subject law.	Addition or order on the labels may describe no operation on the labeled objects.	Supply the intended operation or use names as names.
Read an empty restricted search as absence in the original problem.	Intended cases may lie outside the chosen bound or family.	Return the restricted conclusion or extend the representation.
Count records as objects after adding auxiliary fields.	Multiple records can describe one object and alter the count or sampling law.	Canonicalize, group or weight by the needed correspondence.
Keep a consequence of a replaced requirement.	It can remove the newly allowed cases, as in the changed rule in :5.1.	Re-derive the affected constraints.