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Corticon Studio: Rule Modeling Guide : Logical analysis and optimization : Optimizing Rulesheets : Compression creates sub-rule redundancy

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Compression creates sub-rule redundancy
Compressing our example into a recognizable pattern, however, has an interesting side-effect - we have also introduced more sub-rules than were initially present. To see this, simply Expand
the Rulesheet as shown:
Figure 243. Expanding Rules Following Compression
You may be surprised to see a total of 54 sub-rules (columns) displayed (in the figure above) instead of the 26 we had prior to compression. Look closely at the 54 columns and you will see several instances of sub-rule redundancy – of the 18 sub-rules within original columns 2, 3 and 4, almost half are redundant (for example, sub-rules 2.1, 3.1 and 4.1, shown in the figure above, are identical). What happened?