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 Yearling
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Apr
18
comment Is the null set $\emptyset$ a real subset of any set?
The term in English is Proper.
Apr
18
comment Borel $\sigma$-algebra
Well, borel sets are sets, so there is no concept of linearity there...unfortunately.
Apr
18
answered Is this permutations or combinations?
Apr
18
comment Borel $\sigma$-algebra
There are two question-marks in your question ;)?
Apr
18
comment Borel $\sigma$-algebra
Yes to the first question; and no to the second.
Mar
27
revised Coordinate free definition of the canonical one-form
added 264 characters in body
Mar
27
accepted Coordinate free definition of the canonical one-form
Mar
27
revised Coordinate free definition of the canonical one-form
added 28 characters in body
Mar
27
asked Coordinate free definition of the canonical one-form
Mar
26
revised Are there such things as 'locally homogenous spaces'?
added 224 characters in body; edited tags
Mar
26
comment Are there such things as 'locally homogenous spaces'?
@mfl: Makholms illustration describes quite well what I was trying to drive at above.
Mar
26
asked Are there such things as 'locally homogenous spaces'?
Mar
4
awarded  Yearling
Feb
19
accepted What can be said about the terminal object in a category of pullbacks?
Feb
19
comment What can be said about the terminal object in a category of pullbacks?
It was musing on object classifiers that suggested the question; I hadn't noticed all the bundles would be monic, thanks for pointing that out.
Feb
18
comment On the coequaliser of a kernel pair
Great, thanks; I'm glad to find out that the statement is as confusing as it looks.
Feb
18
accepted On the coequaliser of a kernel pair
Feb
17
asked On the coequaliser of a kernel pair
Feb
17
asked What can be said about the terminal object in a category of pullbacks?
Oct
24
asked are the sections of a sheaf always locally constant functions?