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# bourbaki

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Members: mps matte drini yark CWoo Wkbj79 rspuzio pahio (see full roster)Content: test elliptic curve cryptography abelian categories, examples of lattice attaching pullback squares proof of uniqueness of Lagrange Interpolation formula heap removal algorithm categorical pullback logical connective combinatorial principle Euler's polyhedron theorem, proof of cycle abelian groups form an abelian category, proof that $\mathbf{ab}$-index of graded posets nonogram universal coefficient theorem antipodal map on $S^n$ is homotopic to the identity if and only if $n$ is odd Eulerian poset spherical trigonometry semiring (see full list)

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