Cylinder (algebra)

Encyclopedia : C : CY : CYL : Cylinder (algebra)

Let [A] be a set and [B \subseteq A]. Then the cylinder of [B] with respect to [A] is the cartesian product [B \times A] of [B] and [A]. Normally, [A] is considered to be the universe of the context and is left away.

For example, if [B] is a subset of the natural numbers [\mathbb], then the cylinder of [B] is [B \times \mathbb].

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