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Posts by clemens‭

49 posts
Activity Age Score
66%
+2 −0
Q&A The Fenchel–Moreau theorem; or, how to generalize convex conjugate intuition to the N-dimensional case?

1 answer  ·  posted 5mo ago by clemens‭  ·  last activity 5mo ago by tommi‭

Question multivariable-calculus convex-analysis vector-space
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Meta Guidelines for writing question bodies when one is self-answering

posted 5mo ago by clemens‭

Answer
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Q&A All numbers are triangular modulo $N$ iff $N$ is a power of $2$?

posted 6mo ago by clemens‭  ·  edited 5mo ago by clemens‭

Answer
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+2 −0
Q&A Consequences of NP-Complete in QP?

posted 6mo ago by clemens‭

Answer
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Q&A Upper bound of the complexity of an algorithm on two variables

posted 6mo ago by clemens‭  ·  edited 6mo ago by clemens‭

Answer
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+2 −0
Q&A Is there a stable/consistent extension of wheel theory to alephs?

posted 7mo ago by clemens‭  ·  edited 7mo ago by clemens‭

Answer
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Q&A Compactness of the Propositional Calculus

posted 7mo ago by clemens‭  ·  edited 7mo ago by clemens‭

Answer
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+2 −0
Meta How can we grow this community?

posted 7mo ago by clemens‭

Answer
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Q&A What complexity implications are there from not being in an abstract family of languages?

posted 7mo ago by clemens‭  ·  edited 7mo ago by clemens‭

Answer
62%
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Q&A Defining a explicit function, without axiom of choice, that is not Lebesgue integrable on any interval?

posted 7mo ago by clemens‭  ·  edited 4mo ago by clemens‭

Answer
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+1 −0
Q&A For which spaces are all continuous functions either constant or the identity?

posted 4mo ago by clemens‭  ·  edited 4mo ago by clemens‭

Answer
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Q&A The role of regexps/finite automata in quantifier elimination for Presburger arithmetic

1 answer  ·  posted 4mo ago by clemens‭  ·  last activity 4mo ago by clemens‭

Question logic peano-arithmetic formal-language
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+1 −0
Meta How can we increase the discoverability of good answers?

0 answers  ·  posted 4mo ago by clemens‭  ·  edited 4mo ago by clemens‭

Question discussion feature-request
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Q&A In this representation of surreal numbers and gaps with classes of ordinal numbers, are all gaps represented?

posted 4mo ago by clemens‭  ·  edited 4mo ago by clemens‭

Answer
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Q&A Does there exist a non-zero game such that the sum of three or more copies of it is zero?

posted 5mo ago by clemens‭  ·  edited 4mo ago by clemens‭

Answer
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Q&A Can the relative magnitude of standardized coefficients indicate variable importance?

posted 5mo ago by clemens‭  ·  edited 5mo ago by clemens‭

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+1 −0
Q&A Canonical Homomorphism $G_{2\times 2} \to \mathrm{PGL}(3,2)$?

posted 5mo ago by clemens‭  ·  edited 5mo ago by clemens‭

Answer
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Q&A Are there other topologies on $\mathbb R$ that make it a topological field?

posted 7mo ago by clemens‭  ·  edited 6mo ago by clemens‭

Answer
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Q&A Why we can analytically define ε in dual numbers so to distinguish ε from −ε but cannot do so in complex and split-complex numbers?

posted 4mo ago by clemens‭  ·  edited 4mo ago by clemens‭

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Q&A Is the nth Betti number determined by orientability?

posted 4mo ago by clemens‭

Answer
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Q&A Why isn't $\Pr(diseased|+ test) = \dfrac{\text{number of true positives}}{\text{number of false positives}}$?

posted 4mo ago by clemens‭

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Q&A Are there useful topologies on Cartesian products “in between” the product topology and the box topology?

posted 5mo ago by clemens‭  ·  edited 5mo ago by clemens‭

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Q&A Does the $3+4$ coloring $\chi$ determine the homomorphism $\rho_{\chi}$?

posted 5mo ago by clemens‭  ·  edited 5mo ago by clemens‭

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Q&A Prove that if $X^X$ is a terminal object then $X \to \mathbf{1}$ is a monomorphism

posted 6mo ago by clemens‭  ·  edited 6mo ago by clemens‭

Answer