Gaining intuition over central extension of algebras
101090
Why exactly do sometimes universal covers, and sometimes central extensions feature in the application of a symmetry group to quantum physics?
43503
Bases of complex vector spaces and the axiom of choice
96748
Formal deductions on Hilbert system
88285
Intuition for groups
52976
Product rule intuition
115129
Constructing an explicit isomorphism between finite extensions of finite fields
65910
Reflexivity of equivalence relations
87451
Construction of matrices under ZFC axioms
30793
Intuition behind normal subgroups
49984
Valid justification for algebraic manipulation of $\mathrm{d}y/\mathrm{d}x$?
25793
Extension fields isomorphic to fields of matrices
89990
Direct limit of arbitrary family of tensor products of A-algebras
63390
Infinite algebraic extensions of $\mathbb{Q}$
25706
Good Introduction to Hopf Algebras with Examples
24247
Ring Inside an Algebraic Field Extension
118472
Is there a systematic way of finding the conjugacy class and/or centralizer of an element?
132317
linear algebra over a division ring vs. over a field