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Dec
11
answered Is there a less ad hoc way to find the degree of this extension?
Dec
10
answered Are free modules injective?
Nov
9
asked A ring with IBN which admits a free module with a generator with less elements than a basis
Nov
7
asked Cardinality of a minimal generating set is the cardinality of a basis
Nov
5
asked Is the axiom of universes 'harmless'?
Oct
26
answered Every $R$-module is free $\implies$ $R$ is a division ring
Oct
23
answered Particular case of Nakayama's lemma
Oct
23
asked Must a solution defined for $(t_0,+\infty)$ with bounded limit in $+\infty$ tend to a constant solution?
Oct
21
asked Stability of autonomous linear systems of ODEs
Oct
12
asked Particular case of Nakayama's lemma
Oct
1
asked Square roots of $-1$ in quaternion ring
Sep
28
answered Why is any compact metric space the union of a countable set a subset which is a perfect space under the induced topology?
Sep
7
answered Finding $\lim\limits_{x \to \infty} \sqrt{9x^2+x} - 3x$
Sep
2
answered What's bad about left $\mathbb{H}$-modules?
Aug
31
asked Quotient objects, their universal property and the isomorphism theorems
Aug
20
asked Solutions of homogeneous linear differential equations are a special case of structure theorem for f.g. modules over a PID
Aug
6
asked Are the axioms for abelian group theory independent?
Jul
31
asked Normal closure of a radical extension is radical
Jul
17
asked Interpretation of a formula and truth
Jul
14
answered Can the indexing set of a cartesian product have the cardinality of the continuum?