# Set Theory _1

## Quiz by Paul Joseph Lawrance

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- Q1
A collection of well-defined objects or elements are called

Theory

Symbol

Set

Singleton

45s - Q2
If a is an element of set A, we can write it as

$a\backslash \; \backslash in\backslash \; A$

$a\backslash \; \backslash notin\backslash \; A$

$a\backslash subset\; A$

$A\backslash \; \backslash in\; a$

45s - Q3
A set that contains no element is called

power set

finite set

null set

Singleton set

45s - Q4
A set containing only one element is called

finite set

subset

infinite set

singleton set

45s - Q5
Two sets with no common element are known as

infinite set

disjoint sets

finite set

equal sets

45s - Q6
Two sets with all elements common to both sets are known as

equal sets

finite sets

equivalent sets

infinite sets

45s - Q7
If A = { e, f, g, h} and B = {1, 2, 3, 4} the A and B are called

infinite sets

sub-set

equal sets

equivalent sets

45s - Q8
If A = { 1, 2, 3, 4} B = { 1, 2, 3, 4, 5, 6} then we can say

$A\backslash \; \backslash subset\backslash \; B$

$A\backslash \; =\backslash \; B$

$A\backslash \; \backslash ne\backslash \; B$

$A\backslash \; \backslash not\backslash subset\backslash \; B$

45s - Q9
If A = { 1, 2, 3} B = { 4, 5 } and C = { 0, 6 } then Universal set U =

1, 2, 3, 4, 5

0, 1, 2, 3, 4

0, 1, 2, 3, 4, 5, 6

1, 2, 3, 4, 5, 6

45s - Q10
If A = { a, b } then the Power set P (A ) =

$\backslash left\backslash \{\backslash varnothing,\backslash \; a,\backslash \; b\backslash right\backslash \}$

$\backslash left\backslash \{\backslash left\backslash \{x\backslash right\backslash \},\backslash left\backslash \{y\backslash right\backslash \},\backslash left\backslash \{x,\backslash \; y\backslash right\backslash \}\backslash right\backslash \}$

$\backslash left\backslash \{\backslash \; \backslash varnothing,\backslash \; \backslash left\backslash \{a\backslash right\backslash \},\backslash left\backslash \{b\backslash right\backslash \},\backslash left\backslash \{a,\backslash \; b\backslash right\backslash \}\backslash right\backslash \}$

$\backslash left\backslash \{\backslash varnothing,\backslash \; \backslash left\backslash \{a,\backslash \; b\backslash right\backslash \}\backslash right\backslash \}$

45s