Subsets

If $\mathrm{A}=\{1, 2, 3, 4, 5, 6, 7\}$, then the number of proper subsets of $\mathrm{A}$ is

Write the improper subsets of the following set $A=\left\{1,2,3\right\}$.

The set $A=\left\{1, 2\right\}$ is the improper subset of the set $B=\left\{1, 2, a\right\}$.

Write two differences between proper subset and improper subset.

The improper subset of the set $C=\left\{m, 1, 4\right\}$ is

Write the improper set of the set $B=\left\{1, 2, 3\right\}$.

Write the improper set of the set $A=\left\{a, b, c\right\}$.

Write a superset of the following set.

$A=\left\{7,8\right\}$

Write a superset of the following set.

$A=\left\{6,7,8\right\}$

Write a superset of the following set.

$A=\left\{2,3\right\}$

Write a superset of the following set.

$A=\left\{2,3,4\right\}$

Write a superset of the following set.

$A=\left\{2,3,4,5\right\}$

If $S=\left\{\text{square, rectangle, circle, rhombus, triangle}\right\}$, write the number of elements of subset of $S$ which have shape of $3$ sides.

Write the name of the element from $S=\left\{\text{ square, rectangle, circle, rhombus, triangle }\right\}$, which have radius.

If $A\cap B=B,$ then

If $\mathrm{A}\not\subset \mathrm{B}$ and $\mathrm{B}\not\subset \mathrm{C}$, then $\mathrm{A}\not\subset \mathrm{C}$.

If $x\in A$ and $A\subset B$, then $x\in B$.

If $A$ and $B$ be two finite sets such that the total number of subsets of $A$ is $960$ more than the total number of subsets of $B,$ then $n\left(A\right)-n\left(B\right)$ $($ where $n\left(X\right)$ denotes the number of elements in set $X$ $)$ is equal to

A set $P$ has $20$ elements. The number of subsets of $P$ containing odd number of elements is

Let $A$ and $B$ be two non-empty subsets of a set $X$ such that $A$ is not a subset of $B$, then