Posts by clemens‭

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Meta Why are there no recent well-received questions?

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

Answer

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Meta Guidelines for writing question bodies when one is self-answering

2 answers · posted 5mo ago by clemens‭ · last activity 5mo ago by clemens‭

Question discussion

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Meta Comment thread leads to "404 Not Found" error page

posted 6mo ago by clemens‭

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Meta Comment thread leads to "404 Not Found" error page

1 answer · posted 6mo ago by clemens‭ · edited 5mo ago by Monica Cellio‭

Question bug status-completed

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Q&A Why is the union of two topologies not in general a topology?

2 answers · posted 6mo ago by clemens‭ · last activity 3mo ago by Michael Hardy‭

Question topology set-theory

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Q&A Why are regular languages closed under intersection and complementation?

2 answers · posted 7mo ago by clemens‭ · last activity 7mo ago by Peter Taylor‭

Question computational-mathematics formal-language

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Q&A Is there an equational law satisfied by "linear kei" but not free kei?

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

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Meta "Hot Questions" does not filter for deleted questions

0 answers · posted 6mo ago by clemens‭

Question bug

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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 · last activity 6mo ago by clemens‭

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Q&A Quotation notation in mathematics

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

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Meta Sudden changes in reputation

1 answer · posted 6mo ago by clemens‭ · last activity 6mo ago by ArtOfCode‭

Question discussion support

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Q&A Topological field structures on $\mathbb{Q}$ not generated by the $p$-adic and Archimedean topologies?

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

Question topology abstract-algebra

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Q&A Are there multiple (small class) extensions of the naturals?

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

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Meta Going to "Account" tab incorrectly notifies me about earning "Participate" ability

0 answers · posted 7mo ago by clemens‭

Question bug

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Meta "align" in whatever software this site uses instead of MathJax

posted 3mo ago by clemens‭ · edited 3mo ago by clemens‭

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Q&A What's the complexity of this algorithm for solving the maximum clique NP-Complete problem?

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

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

Question discussion support

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Q&A Are there combinatorial games $G$ such that $G+G$ is fuzzy?

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

Question combinatorial-game-theory

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Q&A When is proof of provability a proof?

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

Answer

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Q&A Quotation notation in mathematics

1 answer · posted 6mo ago by clemens‭ · last activity 6mo ago by clemens‭

Question logic notation

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Q&A Why is the union of two topologies not in general a topology?

posted 6mo ago by clemens‭

Answer

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Q&A How can one prove Tychonoff's theorem using ultrafilters?

1 answer · posted 7mo ago by clemens‭ · last activity 7mo ago by Derek Elkins‭

Question topology set-theory

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Q&A Multivariate urn/coupon collector problem without replacement

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

Answer

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Q&A How to find dualized quantifier pairs in substitutionally quantified analysis?

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

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Q&A Stone–Čech compactification and ultrafilters

0 answers · posted 4mo ago by clemens‭ · edited 3mo ago by Michael Hardy‭

Question topology compactness ultrafilters

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