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Mathematics 20 Online
OpenStudy (anonymous):

{6} (with a sign that looks like a c and e together) {1,2,3,4,5,6,7} need to know if the statement is true or false. if false, explain

OpenStudy (lynfran):

i dont understand ur question can u attach/draw it so i can get a clear view

OpenStudy (anonymous):

yeah give me just a sec

OpenStudy (anonymous):

OpenStudy (lynfran):

true

OpenStudy (lynfran):

in other words the question is asking if 6 is an element of the set (1,2,3,4,5,6,7)

OpenStudy (lynfran):

The relation "is an element of", also called set membership, is denoted by the symbol "∈".

OpenStudy (anonymous):

the answer in the back of the book says false, but i dont have an explanation as to why its false

OpenStudy (welshfella):

it's true that sign means ' is a element of' and the numbers in the parentheses is called a set as you see 6 is included in th set

OpenStudy (welshfella):

oh hold - sorry it is false because [6] is the 'set 6 ' not 6

OpenStudy (welshfella):

6 is an element of the set but the set {6} is not

OpenStudy (anonymous):

ah okay so if it was 6 by itself it would be true, but since it's 1-7 it makes it false?

OpenStudy (welshfella):

if {6} was an element then the big set might be {1,2,3,4,5, {6}, 7 } then {6} would be a sub set I'm the big set

OpenStudy (welshfella):

* sub set of the big set

OpenStudy (anonymous):

ah okay that makes sense

OpenStudy (welshfella):

anyway false is correct

OpenStudy (anonymous):

okay thank you

OpenStudy (welshfella):

yw

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