Inclusion in a set

In set theory, a set is defined by its elements. We can state that an element is in a set using the $\in$ notation - using \in in $\LaTeX$.

Element $a$ is in the set $A$ is written $a \in A$.

Backlinks

• Topic: Set Theory
  • inclusion in a set
• Tuples
  • $\\mathbb{R}^3$ denotes a set of 3-tuples of real numbers, as an example. I.e $(4, 1023, -3) \\in \\mathbb{R}^3$ (inclusion in a set)