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Q&A Meta

Posts by celtschk‭

39 posts
Score Age
66%
+2 −0
Q&A Unification and generalization of limit and colimit

1 answer  ·  posted 1y ago by celtschk‭  ·  last activity 1y ago by Derek Elkins‭

Question limits category-theory
60%
+1 −0
Q&A Criterion in terms of the bases for determining whether one topology is finer than another

posted 1y ago by celtschk‭  ·  edited 1y ago by celtschk‭

Answer
60%
+1 −0
Q&A Proving $|{\bf R}^{\bf R}|=|2^{\bf R}|$ using the Schroeder-Bernstein Theorem

posted 1y ago by celtschk‭

Answer
71%
+3 −0
Meta LaTeX formulas not rendered correctly in summary

1 answer  ·  posted 1y ago by celtschk‭  ·  edited 11mo ago by Monica Cellio‭

Question bug status-completed MathJax-rendering
66%
+2 −0
Meta How to get rid of the tag ordinals?

1 answer  ·  posted 1y ago by celtschk‭  ·  last activity 1y ago by Monica Cellio‭

Question support
60%
+1 −0
Q&A Is this formula for the minimal sum correct?

posted 1y ago by celtschk‭

Answer
75%
+4 −0
Q&A Is this formula for the minimal sum correct?

1 answer  ·  posted 1y ago by celtschk‭  ·  last activity 1y ago by celtschk‭

Question set-theory ordinal-numbers
80%
+6 −0
Q&A Does there exist a non-zero game such that the sum of three or more copies of it is zero?

0 answers  ·  posted 1y ago by celtschk‭

Question combinatorial-game-theory
66%
+2 −0
Q&A Is there a way to encode a unique arrangement of vertices of a graph with a unique short word?

posted 1y ago by celtschk‭  ·  edited 1y ago by celtschk‭

Answer
71%
+3 −0
Meta Why isn't MathJax table appearing?

posted 2y ago by celtschk‭

Answer
83%
+8 −0
Meta Why doesn't \$ work?

posted 2y ago by celtschk‭  ·  edited 2y ago by DNB‭

Answer
71%
+3 −0
Q&A How's it possible to arrange 0 objects? How can 0! = 1?

posted 2y ago by celtschk‭

Answer
50%
+0 −0
Q&A Is Mathematical Induction truly "induction", or misnamed?

posted 2y ago by celtschk‭

Answer
71%
+3 −0
Q&A Why must percent change divide the difference by the old, NOT new, value?

posted 2y ago by celtschk‭

Answer
81%
+7 −0
Q&A Does this construction always give a topological vector space?

0 answers  ·  posted 2y ago by celtschk‭  ·  edited 2y ago by r~~‭

Question topology linear-algebra topological-vector-spaces
71%
+3 −0
Q&A Getting backward of partial differentiation's chain rule

posted 2y ago by celtschk‭

Answer
60%
+1 −0
Meta MathJax doesn't render after editing comment

0 answers  ·  posted 2y ago by celtschk‭  ·  edited 2y ago by deleted user

Question bug MathJax-rendering comments
66%
+2 −0
Q&A What is "continuous" in Math?

posted 2y ago by celtschk‭

Answer
71%
+3 −0
Q&A Is $x=\int \int \ddot{x}\mathrm dx \mathrm dx$?

posted 2y ago by celtschk‭

Answer
75%
+4 −0
Q&A Prove that $\int \ddot{x}(t)\mathrm dt=v_0 + \frac{F_0}{m}t$

posted 2y ago by celtschk‭

Answer
66%
+2 −0
Q&A After $n - 2$ unchosen doors are opened, how does the probability of the $n - 2$ unchosen doors "shift" or "transfer" to the lone unchosen door?

posted 2y ago by celtschk‭

Answer
50%
+0 −0
Meta Editing my answer fails

0 answers  ·  posted 2y ago by celtschk‭  ·  edited 2y ago by Monica Cellio‭

Question bug status-completed editing
60%
+1 −0
Q&A How to determine area of square using Calculus in Cartesian coodinate?

posted 2y ago by celtschk‭  ·  edited 2y ago by celtschk‭

Answer
60%
+1 −0
Q&A differentiate under integral sign says something went wrong

posted 2y ago by celtschk‭  ·  edited 2y ago by celtschk‭

Answer
71%
+3 −0
Q&A What's wrong with evaluating $n(n-1) \dots (n-[k-3])(n-[k-2])\color{red}{(n-[k-1])}$ at $k = 1$?

posted 2y ago by celtschk‭

Answer