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<html lang="en"><head><meta charset="UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><title>What is a Matroid? · Matroids</title><meta name="title" content="What is a Matroid? · Matroids"/><meta property="og:title" content="What is a Matroid? · Matroids"/><meta property="twitter:title" content="What is a Matroid? · Matroids"/><meta name="description" content="Documentation for Matroids."/><meta property="og:description" content="Documentation for Matroids."