19

Answers
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3
Are integers real?
2
Does each “prod-simplicial” regular cell complex come from a unique rooted tree?
1
Does pi contain 1000 consecutive zeroes (in base 10)?
11
Fundamental problems whose solution seems completely out of reach
5
Why is the the classifying space of the natural numbers homotopy equivalent to the circle?
1
Are there examples of non-orientable manifolds in nature?
0
Examples of Simplicial Groupoids in Nature
0
The main theorems of category theory and their applications
9
Why study simplicial homotopy groups?
0
Geometric intuition for limits
8
When and where did the term “module” enter commutative algebra?
20
Examples where it’s useful to know that a mathematical object belongs to some family of objects
5
The concept of Duality
4
Expressing Galois actions on fundamental groups explicitly
3
Best online mathematics videos?
3
What is the best way to study Rational Homotopy Theory
3
Can skeleta simplify category theory?
1
Classes of metric spaces with additional structure
2
Classifying space of large category?