Set notation: $7 \notin B$ means

Set notation: $7 \notin B$ means
  1. $7$ is not an element of $B$
  2. $7$ is an element of $B$
  3. $B$ has $7$ elements
  4. $7$ is a subset of $B$

Solution

$\notin$ means 'does not belong to'.

Asked in: MH-SSC-9

Practice more Sets questions on Aicharya