3 | Basic Definitions, the Intersection Poset and the Characteristic Polynomial | 4.5 | Properties of the Intersection Poset and Graphical Arrangements | 3.5 | Matroids and Geometric Lattices | 4.5 | Broken Circuits, Modular Elements, and Supersolvability | 10 | Finite Fields | 3.5 | Random Walks on Regions | 5 | Separating Hyperplanes | 3 | Tutte Polynomial |
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