Interchangeable variables and values
Interchangeable variables and values
Interchangeable variables and values
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Signature of an<br />
assignment<br />
• Signature of the value k<br />
• Sig[k] = (O[1],..O[a])<br />
• Where O(i) = |{ j | X[j]=k}|<br />
• Example<br />
• X[1],X[2] <strong>and</strong> X[3],X[4] are 2 partitions of vars<br />
• 1,2 <strong>and</strong> 3,4 are 2 partitions of <strong>values</strong><br />
• X[1]=3, X[2]=3, X[3]=1, X[4]=4
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