27

Answers
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17
Blackbox Theorems
5
What’s the notation for a function restricted to a subset of the codomain?
2
How to cite math journals?
9
Is the empty graph a tree?
0
“Axiom of global choice”
3
Laurent Polynomials
6
union of infinitely many prime ideals
3
Why should morphisms between two graded vector spaces preserve grading?
2
injectivity of torsion submodules of injectives
4
What kind of subset is Spec(R_P) in Spec(R)?
2
Are grothendieck universes enough for the foundations of category theory?
5
Projective dimension of zero module
8
On some finiteness properties for schemes
11
What is the dimension of the product ring $\prod \mathbb Z/2^n\mathbb Z$ ?
4
Direct product of rings
0
A construction of tensor product (Coutinho’s book: D-module)
1
Using Function Terminology for Functors?
6
Does every regular Noetherian domain have finite Krull dimension?
2
Injective modules and torsion functors
2
Length of a resolution
5
Examples of polynomial rings $A[x]$ with relatively large Krull dimension
2
How to call covers not covering anything else?
4
Question on localization technique
3
Finitely generated resolutions
1
Subgroup of lattice-ordered group
3
Question on local cohomology
1
Lattice of Prime ideals