Theorem. Chromatic Polynomial

THEOREM

Let G be a simple graph, v and w — not adjacent vertices. Let G₊ obtained from G by connecting v and w, and graph G₌ — by combining vertices v and w in one. Then

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Trammel of Archimedes Art
Row and Column Views of Systems of Linear Equations
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General Polar Equation of Conics with Rotation (2)

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Families of Functions
Estimation of Measurement
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Exact construction of a common tangent to 2 circles (CAS)
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circles

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