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visits member for 4 years
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Oct
5
revised Splicing together Short Exact Sequences
added 347 characters in body
Oct
5
revised Splicing together Short Exact Sequences
added 564 characters in body
Sep
25
revised The endomorphism of field
edited tags
Sep
17
revised Transformations of sinusoids
edited title
Sep
4
revised Abstract nonsense proof of the cocompleteness of the category of groups
deleted 338 characters in body
Sep
4
revised Abstract nonsense proof of the cocompleteness of the category of groups
added 285 characters in body
Jul
21
revised A free group on the non-empty set $X$ is solvable iff $|X| =1$
edited tags
Jul
20
revised Graph $y=1/\sin x$
added 137 characters in body
Jul
20
revised Graph $y=1/\sin x$
added 645 characters in body; edited body
Jul
20
revised Graph $y=1/\sin x$
added 442 characters in body; added 95 characters in body
Jul
19
revised Why is associativity required for groups?
edited tags
Jul
4
revised Abelian categories and axiom (AB5)
added 68 characters in body
Jun
12
revised Some questions about the Tor functor as a two-variable functor related to the arbitrary character of the choice of projective resolutions
deleted 1305 characters in body
May
11
revised Codomains, products and limits
added 9 characters in body
May
8
revised Explicit isomorphism $\tilde{H_n}(X)\simeq \tilde{H}_{n+1}(SX)$.
I've removed the "homework" tag, since the deadline is over
May
1
revised Explicit isomorphism $\tilde{H_n}(X)\simeq \tilde{H}_{n+1}(SX)$.
added 11 characters in body
Apr
23
revised Examples of comma categories
added 59 characters in body
Apr
15
revised Ideal as a projective module
added 7 characters in body
Apr
15
revised Ideal as a projective module
added 7 characters in body
Mar
23
revised best algebra ebook for self-study
edited tags