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StefanH
http://stefuzius.wordpress.com/
stefuzius84 (at) web (dot) de
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Top Questions
35
votes
Why do people with perfect pitch perceive tunes not in 440 Hz out of tune?
tuning
pitch
absolute-pitch
relative-pitch
asked Mar 7, 2017 at 10:26
music.stackexchange.com
21
votes
With this definition of completeness, Gödel's Incompleteness result seems not surprising, so why it was back then?
logic
first-order-logic
incompleteness
asked Apr 6, 2018 at 14:20
math.stackexchange.com
20
votes
How do the open sets look in the product topology?
general-topology
analysis
asked Jul 13, 2013 at 14:26
math.stackexchange.com
16
votes
Theoretical Question about "Smoke On The Water"
guitar
theory
rock
tonal
asked Apr 12, 2017 at 16:35
music.stackexchange.com
15
votes
On the realisation of monoids as syntactic monoids of languages
fl.formal-languages
automata-theory
regular-language
algebra
monoid
asked Jun 9, 2016 at 18:55
cstheory.stackexchange.com
13
votes
Categorial definition of subsets
abstract-algebra
set-theory
category-theory
asked Feb 5, 2013 at 21:49
math.stackexchange.com
12
votes
The notation $\prod_{g\in G} g$ for a finite group not well-defined.
abstract-algebra
group-theory
asked Feb 9, 2013 at 22:18
math.stackexchange.com
12
votes
How can a camera be both 12MP and 1080p, when 1920x1080 is just 2,073,600?
cameraphones
megapixels
specification
asked Feb 1, 2017 at 12:18
photo.stackexchange.com
12
votes
Using a fidget spinner to rotate in outer space
attitude
microgravity
rotation
humans
asked Dec 31, 2020 at 11:16
space.stackexchange.com
11
votes
Is there a difference between allowing only countable unions/intersections, and allowing arbitrary (possibly uncountable) unions/intersections?
general-topology
analysis
logic
set-theory
asked Jun 25, 2012 at 15:00
math.stackexchange.com
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Top Answers
20
Can mathematics get from other sciences what it got from physics?
math.stackexchange.com
17
Why are regular expressions defined with union, concatenation and star operations?
cs.stackexchange.com
16
Are there a mathematical theorieshelp us to prove $ i^2={-1}$?
math.stackexchange.com
13
Conway's lesser-known results
mathoverflow.net
12
How are simple groups the building blocks?
math.stackexchange.com
10
Finding a career as a researcher without any PhD, work experience, and/or relevant academic degree
academia.stackexchange.com
7
What's the point in being a "skeptical" learner
math.stackexchange.com
7
How to find the number of anti-symmetric relations?
math.stackexchange.com
7
Myhill-Nerode and closure properties
cs.stackexchange.com
7
Show that a semigroup with $aS \cup \{a\} = bS \cup \{b\}$ and $Sa \cup \{a\} = Sb \cup \{b\}$ is a group
math.stackexchange.com
7
For some learning piano at a later stage in life e.g past late 20s, what must they be aware of to make the most of it?
music.stackexchange.com
6
How can we think and/or write rigorously about integration by substitution?
math.stackexchange.com
6
Regular language as finite union of periodic sets
cs.stackexchange.com
5
Generalization of $|HK|=\frac{|H||K|}{|H∩K| }$, where $H,K$ are finite subgroups
math.stackexchange.com
5
Context free grammar where number of a's is larger than number of b's in any prefix of the string
cs.stackexchange.com
5
Is it recommended to learn a piece you really like, but is way above your level?
music.stackexchange.com
5
Algebra oriented branch of theoretical computer science
cstheory.stackexchange.com
5
Do Monoid Homomorphisms preserve the identity?
math.stackexchange.com
5
Has anyone mixed linear algebra with formal language theory in this way?
cstheory.stackexchange.com
5
Why is proving something is NP-complete useful, and where can I use it?
cs.stackexchange.com
5
Papers of the masters translated to English in one location
mathoverflow.net
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