by Tyler durden2333 August 12, 2022
Get the None Based Sigma mug.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 Greek alphabet letter but modernized and fantasized into a gen alpha TikTok brainrot slang word. Used to describe someone great or a “sigma male/female”
Highest rank in a pack, right above alpha.
Can be used as a replacement for a curse word.
Highest rank in a pack, right above alpha.
Can be used as a replacement for a curse word.
by pinkie.pie July 3, 2024
Get the Sigma mug.by childtoucherrr July 25, 2025
Get the sigma nigga mug.uhhh its referring to a supposed classification for men who are successful and popular,,, BUTTTT also silent and rebellious!
by Hedroix July 16, 2024
Get the Sigma mug.
