Question

find the cardinality ? ¯

Answer 1

of?

Answer 2

[(1,4), a,b (3,4) (empty set)]

Answer 3

@pgpilot326

Answer 4

how many elements in the set?

Answer 5

its all in 1 bracket but seperated into parenthesis does that make sense ?

Answer 6

{(1,4), (a,b), (3,4), (empty set)} like this of is it a set of sets?

Answer 7

or not of

Answer 8

|{{1,4},a,b,{{3,4}},{empty set}}|

Answer 9

so how many sets in the set?

Answer 10

3 ? including the empty set or that doesn't count ?

Answer 11

hint: 1 more than the number of commas within only 1 set of brackets.

Answer 12

{1,4} is an element
a is an element
b is an element
{3,4} is an element
{empty set} is an element

Answer 13

isn't (1,4) a set ?

Answer 14

wha twould be the answer then im confused lol

Answer 15

so it is a cardinality of 5 ?

Answer 16

what if you add 1 more bracket to the front and back of the line ?

Answer 17

{} are use to denote sets
() are used to denote ordered n-tuples. for example, (1,2) is a point in 2-space. Although 2 numbers are needed, it is still considered a single point (or element) in 2-space.

How exactly is the problem stated... brackets, parentheses and all?

Answer 18

you there?