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Dec
4
revised Pullback preserves cokernel
edited tags
Dec
4
revised Showing that a functor is not representable.
edited tags
Dec
2
revised Foundational theories, their uses, interactions and comparisons?
edited tags
Dec
1
revised The set of discontinuous points is countable union of closed sets
edited tags
Nov
29
revised Exact sequence in a category with zero morphisms
added 263 characters in body
Nov
29
revised Every projective f. g. module is f. p.
edited tags
Nov
28
revised Why $F^{+}$ is a monopresheaf?
edited tags
Nov
28
revised What is a (the?) good starting point for learning the modern “higher” mathematics?
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Nov
26
revised Properties of the internal language of the category of sheaves.
edited tags
Nov
26
revised Deeper studies in Category Theory: suggestions and references.
deleted 1 characters in body
Nov
26
revised Deeper studies in Category Theory: suggestions and references.
deleted 1 characters in body
Nov
25
revised On the definition of the direct sum in vector spaces
added 59 characters in body; edited tags
Nov
19
revised Volume 3 of Johnstone's “Sketches of an Elephant”
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Nov
17
revised Algebraic structures with one binary operation
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Nov
17
revised Algebraic structures with one binary operation
rolled back to a previous revision
Nov
17
revised Algebraic structures with one binary operation
edited tags
Nov
17
revised An exact homology sequence associated with a principal SO(n) bundle
edited tags
Nov
14
revised ETCS set theory: Are empty sets isomorphic?
added 166 characters in body
Nov
14
revised ETCS set theory: Are empty sets isomorphic?
edited tags
Nov
13
revised Prove associative of $(A \setminus B)\cup C = A \setminus (B \cup C)$
edited tags