What Does Upside Down T Mean In Math

What Does an Upside Down Cross (Inverted Cross) Really Mean?

What Does Upside Down T Mean In Math. (i'm not sure how to research it if i don't know its name) =).

What Does an Upside Down Cross (Inverted Cross) Really Mean?
What Does an Upside Down Cross (Inverted Cross) Really Mean?

(i'm not sure how to research it if i don't know its name) =).

(i'm not sure how to research it if i don't know its name) =). (i'm not sure how to research it if i don't know its name) =).