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Answers
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The “right” $C^*$ algebraic proof of Bott Periodicity
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Importance of separability vs. second-countability
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Is there any proof that you feel you do not “understand”?
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A space parameterizing the choices of orthonormal bases for a Hilbert space
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A characterization of Hilbert spaces?
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Decidability of equality of expressions built using 1,+,-,*,/,^
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Does the Border (Boundary) Points of a convex body make a concave function?
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Certain bounded linear operators on L^2 of a torus
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Existence of a projection operator onto a classical set of density matrices
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Uncountable Pre-Image
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Are compact sets in a Banach lattice order bounded?
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Resolvent of Laplacian
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Is the image of discrete set under an open map discrete?
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Order-isomorphic down-set lattices
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Consistency of the concept of the collection of all collection
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Generalization of zero-diagonal square matrices to linear operators
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functional analysis
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Limit with theorem of dominated convergence
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Products of Boolean algebras and probability measures thereon
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From point-wise to essential supremum of a set of real-valued measurable functions (2)
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Undecidability and holomorphic functions (Reference request)
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Is this result of Spain correct?
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Are all points x of the boundary of a convex set C of a Hilbert space H projections onto C of a point different than x?
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fourier analytic proofs
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Is there a maximum to the amount of disjoint non-measurable subsets of the unit interval with full outer measure?
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Example of a topological space…
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Banach lattice subspace of $C([0,1])$ not a sublattice
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distributive sublattices of atomistic ortholattices
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Decomposing bilinear forms in Hilbert spaces
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Kadison-Singer problem in exotic Hilbert spaces
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