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1d
revised Question about multiplication of Dedekind Cuts?
added 4 characters in body
1d
revised If $X$ is compact and $C$ is an open finite cover of $X$ then $C$ has a maximum Lebesgue number.
added 320 characters in body
1d
revised Is there a finite initial generating set for ${\mathbb N}$ given these two operations?
Added link to earlier question.
2d
revised An example of open closed continuous image of $T_2$-space that is not $T_2$
Typos. Fixed last paragraph, where my mind ran ahead of my fingers originally.
2d
revised An example of open closed continuous image of $T_2$-space that is not $T_2$
Typos.
Aug
29
revised partitions and generating functions ( combinatorics )
added 359 characters in body
Aug
28
revised sequentially continuous on a non first-countable
Typo.
Aug
27
revised Probability with $n$ successes before $m$ failures
added 367 characters in body
Aug
27
revised Can a set containing a string of length $\omega_0$ be well-ordered by substring total order?
Updated to match newly posted version.
Aug
27
revised Summatory problem | Ordinary least square estimator
added 98 characters in body
Aug
27
revised How to find $\frac{a+b+c}x$?
added 19 characters in body
Aug
26
revised Cantor's Theorem with Posets
Typo.
Aug
25
revised Is a particular countable subset of the Cantor set Polish?
added 528 characters in body
Aug
24
revised show how to prove this question about continuous
added 142 characters in body
Aug
24
revised show how to prove this question about continuous
Fixed MathJax, minor copyediting.
Aug
24
revised Let $g_{n}$ be the no. of derangements with $n$ elements and $f_{n}$ the no. of permutations with one fixed point. Show that $|g_{n}-f_{n}|=1$
added 74 characters in body
Aug
24
revised A-noncompact, Does there **always** exist a continuous function $f: A \to \mathbb R$ which is bounded but does not assume extreme values?
added 2303 characters in body
Aug
23
revised Proof a regular language by intersection construction
Slightly improved formatting.
Aug
22
revised Can a rational bigger than product of two reals be written as a product of two rationals bigger than each real?
edited body
Aug
22
revised Countably closed Boolean algebra of subsets of the real plane,
Better formatting, slightly better notation.