200 reputation
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bio website whereofonecannotspeak.wordpre…
location Brighton, United Kingdom
age
visits member for 1 year, 7 months
seen 11 hours ago
stats profile views 73

22h
comment Is this $\mathbb{Z}_2^n$?
@AWalker ... or what you did.
22h
comment Is this $\mathbb{Z}_2^n$?
@AWalker, ah, I see, I will add quotes ;)
22h
comment Is this $\mathbb{Z}_2^n$?
Cool :) That's what I was thinking.
22h
comment Is this $\mathbb{Z}_2^n$?
@AWalker, I thought it would be, yes.
May
11
comment Seems that I just proved $2=4$.
@Magtheridon96 The power tower is the infinite tetration.
May
7
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
@AlexanderGruber Weird: "multiple third-party notifications of copyright infringement"
Mar
15
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
You can watch it again online: youtube.com/watch?v=YRD4gb0p5RM
Mar
15
comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)
Ooohhhhh yes indeed! I can still remember the theme music now, and picture the pentagrams arms expanding into golden rectangles.
Jan
29
comment Funny thing. Multiplying both the sides by 0?
clear and concise.
Jan
27
comment Prove this product
@MichaelHardy Essentially, because things mistakes like $x^-1$, $g_ij$ require recompilation - which is annoying - if you put in plenty of brackets you get more intuitive behaviour. Much in someone who uses supercollider might be tempted to put brackets in ((a*b)+(c*d)) no matter what language they are using, as they are intuitively aware that syntactic sugar does not apply everywhere. Or it is a result of changing something from x^{-2} to x^{2} - deleting and re-adding curly brackets is very annoying.
Dec
29
comment Find the infinite sum $\sum_{n=1}^{\infty}\frac{1}{2^n-1}$
+1 for a good non answer
Dec
27
comment Rigorous Definition of “Function of”
@MichaelHardy I am aware that this particular way of speaking is a constant source of confusion, I can think of whole bodies of literature that are founded such misunderstandings.
Dec
27
comment Rigorous Definition of “Function of”
@MichaelHardy If there was a special, well known, term for protestant women (think "bijection"), it would make sense to say "neither", "woman", "Protestant", or "both". Let's put it this way, when I use the word "Catholic" I generally don't mean the pope, (1) because most Catholics are not the pope, but more importantly for the point here (2) because if I meant the pope, I would say "the pope". It does not make no sense absolutely, especially to anyone who has been taught surjective, injective and bijective as the basic way of classifying functions. Assume: If it is a bijection I would say so.
Dec
25
comment Rigorous Definition of “Function of”
@MichaelHardy It is very common in every day speech (not formal languages) to assume a shared disjunctive judgment - i.e. that "tea or coffee" refers to either tea or coffee, not both. Similarly, although the classes of "surjective" and "injective" are not formally disjoint, an informal assumption about disjoint categories when we use natural language allows us to informally use terms like "neither", "surjective","injective" and "both" as referring to disjoint categories. This disjunction is not explicit, and thus assumed and informal, but it is something we (must) do all the time to talk.
Dec
25
comment Rigorous Definition of “Function of”
@MichaelHardy by surjective I meant, non-injective and surjective (i.e. a surjection but not a bijection). I admit this is probably not the formally correct way of speaking. In other words, I meant it in the "would you like tea or coffee? Tea!" sense. Rather than the "would you like tea or coffee? Yes!" sense.
Dec
25
comment Rigorous Definition of “Function of”
Michael's definition is definitely what it means in this context. But, a statistic in general, does not require the constraint given by @ruakh . This a restricted type of statistic (and function), in fact it is usually the case that statistics are given by surjective functions.
Dec
19
comment Solutions to $\int_{x_0}^{x_1} f(x,y)^{-n} \left(\frac{\partial}{\partial y} f(x,y)\right)^m dx = 0$
I would consider it a trivial solution, but that does not mean that your response is not appreciated :)
Dec
18
comment Name this polytope
Also, I want the name of a whole class.
Dec
18
comment Name this polytope
That isn't what I'm asking, sorry :( Possibly it is the dual (in some sense) of the 24-cell.
Dec
17
comment Conjugate prior for noisy Bernoulli
Do you need to infer $\beta$ too?