Sigma

Is a lone Wolf mathematician, Lucas James

Lucas: "...That's because i'm a sigma." Tori: "So sigma."

by Rqia May 17, 2022

sigma algebra

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.

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

sigma nigga

when someone is like very awesome and they have a big black cock

Tod: Yo Dave! are you a sigma?
Dave: yeah of course I'm a sigma nigga! I'm awesome and have a BBC!

by childtoucherrr July 25, 2025

What the sigma

It is really just another things such as “What the heck” just something to say when something strange happens.

“Erm what the sigma”

by Ohio Fanum Tax Rizzler May 27, 2024

Sigma

sticking out ur GYATT for the rizzler your so SKIBIDI your so fanon tax I just wanna be your sigma freaking come here and give me your Ohio is a standard used by the very toxic species called Gen-Z and the most dangerous one that needs to be locked in cages is called Gen-alpha

sticking out ur GYATT for the rizzler your so SKIBIDI your so fanon tax I just wanna be your sigma freaking come here and give me your Ohio is a standard used by the very toxic species called Gen-Z and the most dangerous one that needs to be locked in cages is called Gen-alpha

Gen-alpha: STICKING OUR UR GYATT FOR THE RIZZLER-

Non gen-alpha:SHUT THE FUCK UP

by DANIElA_DANIELLA_DANI May 11, 2024

sigma sauce

Yummy juices that are usually exchanged at the lunch table.

I’m gonna put my sigma sauce in you.

by TheGyattMonger March 28, 2024

sigma

a word describing an alpha male (somebody who thinks they are high in the social hierarchy)

Bob: bro i have so much rizz!
Joe: you're not sigma bro stop acting like you are!

by gab_the_labe March 24, 2025