A sigma algebra (or σ-algebra) is to set algebras what sigma males are to males. The Borel hierarchy (the analog of the male hierarchy) is not a σ-algebra at any countable rank; instead the σ-algebra has the largest possible rank -- ω_1, the least uncountable ordinal (under suitable conditions e.g. the Polish space is uncountable. This is known as the non-collapse of the Borel hierarchy).
A σ-algebra is closed under countable union, countable intersection, and relative complement. This means σ-algebras arise naturally in the study of measure theory, where the measurable sets form a σ-algebra.
A σ-algebra is closed under countable union, countable intersection, and relative complement. This means σ-algebras arise naturally in the study of measure theory, where the measurable sets form a σ-algebra.
The algebra of Lebesgue-measurable subsets of R (i.e. the sets of real numbers with a well-defined "length", which is possibly infinity) form a sigma algebra.
by sigma_algebra_grindset June 5, 2022
Get the sigma algebra mug.a sexist psychopathic (usually male) who’s ideologies include that of Patrick Bateman and Louis Bloom.
Two examples of notable “sigmas” are Tiktok creators “gabe27273848”, “bateman_fontanix”, and “m9ds9”
Two examples of notable “sigmas” are Tiktok creators “gabe27273848”, “bateman_fontanix”, and “m9ds9”
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Get the sigma mug.A bunch of bozos who run around in suits thinking it makes them important. The reality is that all of them come from affluent backgrounds and will get in anywhere because their dads are Vice Presidents of Goldman.
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Get the Sigma Male mug.A hypothetical Covid variant of concern first detected in Indonesia. It is said to be more contagious than both Delta and Omicron and may cause more severe illness. It is quickly outcompeting Omicron as the dominant strain
by Fortnite1500 November 20, 2021
Get the Sigma mug.The alpha male is one who's born as a leader, the beta male is one who's born to follow the alpha. But the sigma male goes above and beyond both alpha and beta, it is not in the control of any elements, it stands outside the hierarchy. Anyone can be a sigma male if they tries their best
Touma: start your life over you,dumbass
Touma: *punches with full force
*Vento faints
Cultured weeb: wow no hesitation
Megumin: haven't you heard of ladies first
Kazuma: I yearn for true gender equality
*starts wrestling for the bath
Cultured weeb: that's a sigma male right there
Touma: *punches with full force
*Vento faints
Cultured weeb: wow no hesitation
Megumin: haven't you heard of ladies first
Kazuma: I yearn for true gender equality
*starts wrestling for the bath
Cultured weeb: that's a sigma male right there
by weebWithTrashTaste March 10, 2022
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