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MATH-SUBSETS Using Setbuilder Notation

by AMBER
(OHIO)











































A = {x | x ¡Ê N and x < 6}

B = {x | x ¡Ê N and 1 ¡Ü x ¡Ü 5}

Comments for MATH-SUBSETS Using Setbuilder Notation

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Feb 25, 2011
MATH-SUBSETS Using Set Builder Notation
by: Staff

The question:

by AMBER
(OHIO)


A = {x | x ¡Ê N and x < 6}

B = {x | x ¡Ê N and 1 ¡Ü x ¡Ü 5}

The answer:

To type the following symbols on your keyboard, hold down the ALT key, type the code, then release the ALT key:

⊂, subset, 8834
⊃, superset, 8835
∈, element of a set, 8712
∩, intersection, 8745
∪, union, 8746
Ø, null set, 0216
≥, greater than or equal to, 8805
≤, less than or equal to, 8804

Note: N = Set of all Natural Numbers = {1,2,3,4,5,...}

(some authors also include 0 as part of the set of all Natural Numbers)

Some of the symbols you submitted did not display properly, but I think this is what you probably meant:

A = {x | x ∈ N and x < 6}
the set of all x, where x is a subset of N, and x is less than 6

B = {x | x ∈ N and 1 ≤ x ≤ 5}
the set of all x, where x is a subset of N, and x is greater than or equal to 1, and less than or equal to 5


You didn't say what problem you are trying to solve.

For your information, both sets are equal:

A = {x | x ∈ N and x < 6} = {1,2,3,4,5}

B = {x | x ∈ N and 1 ≤ x ≤ 5} = {1,2,3,4,5}




Thanks for writing.


Staff
www.solving-math-problems.com



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