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 Curious
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Nov
10
comment Traveling Salesman with exceptions
If m=n is a particular case of your problem then it's trivially NP-hard...
Nov
2
answered Proving equivalence relations and showing equivalence classes
Nov
2
revised Are all mathematical statements true or false?
unprovable -> undecidable
Sep
10
answered What is the minimum number of guesses in order to guarantee to win the prize?
Sep
10
answered Modular arithmetic with different moduli?
May
19
awarded  Curious
May
18
accepted Sufficient condition for integer Hausdorff dimension.
May
18
asked Sufficient condition for integer Hausdorff dimension.
Mar
11
awarded  Yearling
Feb
22
awarded  Nice Answer
Feb
17
comment What is a limit point
@TSJ lmgtfy.com/?q=limit+point I believe in your previous remark you had "accumulation points" in mind, i.e. point that are not isolated.
Feb
16
comment What is a limit point
@TSJ Yes they are, they are limits of constant sequences from $S$...
Jan
26
answered Multiplication of rational with irrational number?
Jan
22
revised Set Theory: Cardinality of functions on a set have higher cardinality than the set
deleted 8 characters in body
Jan
22
comment Does $A\times A\cong B\times B$ imply $A\cong B$?
Why isnt' it enough to project onto the first component to get $A\cong B$
Jan
22
answered Set Theory: Cardinality of functions on a set have higher cardinality than the set
Jan
20
revised Linear space and cardinals
remark on S infinite
Jan
20
comment Linear space and cardinals
yes this is only for infinite $S$, I'll add it
Jan
20
revised Linear space and cardinals
typo
Jan
20
comment Linear space and cardinals
I edited the answer to make it rigorous.