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A Characteristic Set Method for Solving Boolean Equations

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Background CS <strong>Method</strong> Implementation Experiment Conclusion<br />

Well-Ordering Principle<br />

Let P0 be a finite <strong>Boolean</strong> polynomial set.<br />

P = P0 P1 · · · Pi · · · Pm<br />

C0 C1 · · · Ci · · · Cm = C<br />

R0 R1 · · · Ri · · · Rm = ∅<br />

Ci = a characteristic set of Pi<br />

Ri = prem(Pi, Ci)<br />

Pi+1 = Pi ∪ Ri<br />

Fact. m ≤ 2 n .<br />

Wu <strong>Characteristic</strong> <strong>Set</strong> of P: C<br />

(1) ∀P ∈ P, prem(P, C) = 0.<br />

(2) C ⊂ (P).<br />

Fact: Cm is a Wu CS of P.<br />

(2)

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