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9h
revised Is it possible to construct Hausdorff compact topology on every set?
added 236 characters in body
2d
revised arithmetic mean of smallest numbers of all subsets of r elements formed out of (1,2,..n)
Imported images as text.
2d
revised Number of cyclic paths in a rectangular grid?
added 2 characters in body
2d
revised to prove some subset of a club set is club
added 783 characters in body
Apr
26
revised Continuous/Onto Function Between Topological Spaces
added 564 characters in body
Apr
25
revised Regularity check of languages
Typo.
Apr
25
revised Finding a Regular Grammar
MathJax, formatting.
Apr
25
revised Basic Topology: Countable Complement Topology
MathJax, corrected title.
Apr
24
revised Sequential continuity for quotient spaces
added 458 characters in body
Apr
23
revised Setting up an inclusion-exclusion question
deleted 89 characters in body
Apr
22
revised Generating function for multiset formula
added 132 characters in body
Apr
22
revised Definition of Polish Topology
Better MathJax.
Apr
22
revised prove a number is irrational
edited tags
Apr
21
revised Is it possible to make ABC from these rules?
Formatting.
Apr
21
revised Powers of two with coefficients $\{1, -1\}$
added 15 characters in body
Apr
21
revised Powers of two with coefficients $\{1, -1\}$
Formatting.
Apr
21
revised Does Gödel’s theorem affect anything but the arithmetic of the natural numbers?
Translated title.
Apr
21
revised Concrete Mathematics - 2.4 - sum of 1/k-j
Typo.
Apr
21
revised Find the derivative of I(x) = $\int _{\sin\left(x\right)}^{\cos\left(x\right)}\arctan\left(t^2\right)\,dt$
Better MathJax.
Apr
21
revised Clarification about completeness of metric spaces
Fixed MathJax.