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• 46 What is the simplest, most elementary proof that a particular number is transcendental?
• 21 The infinite X in Conway's game of life
• 11 Euclid / Hilbert: "Two lines parallel to a third line are parallel to each other."
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• 7 Homotopy Transfer Theorem for Differential Graded Associative Algebras
• 7 The Surreal numbers satisfy all the field axioms except that its elements constitute a proper class. Is it safe to call it a field?
• 6 In the quaternions, "any imaginary unit may be called i"
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