Letâ€™s talk about set theory! In mathematical logic, we have a subfield called â€śset theoryâ€ť where we study how items are collected into groups.

Providing a sort of logical bedrock, set theory informs foundational mathematics and computer science, among other fields, and continues to be a topic of mathematical research.

Sound too esoteric? Okay, youâ€™re familiar with Venn diagrams, right? Venn diagrams are an example of basic set theory.

And you know how all squares are rectangles, but not all rectangles are squares? There we go, more set theory.

So, Black people are group within the larger group humans, i.e. all Black people are humans, BUT not all humans are Black people.

As you can see in the photograph above, Keven Stonewall, the Chicago teen who may cure colon cancer, is Black. Keven Stonewallâ€™s membership in other groups such as humans, Chicagoans and teenagers occurs simultaneously; consider â€śChicago teen.â€ť

Why do we say â€śsquareâ€ť when we could say â€śrectangleâ€ť? Because â€śsquareâ€ť conveys useful information, including â€śrectangleâ€ťâ€”as well as a refinement.

When we say Keven Stonewall is an example of Black excellence, we mean Keven Stonewall is an example of Black excellence.

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Black excellence! And â€¦ BlackÂ Chicago excellence! Repping the South side, Iâ€™m so proud of him! Rush University is great!