I know and understand what natural numbers are, but what does it mean when the natural number symbol has a + at the top, in the position the squared number would be. Can't seem to find information...

I know and understand what natural numbers are, but what does it mean when the natural number symbol has a + at the top, in the position the squared number would be. Can't seem to find information...

1. How many students don't like either? 2. ~hamburgers=

87 read Journal, 74 read Business, 88 read Times, 56 read Journal and Business, 55 read Business and Times, 67 read Journal and Times, 42 read all 3. 1. How many read only the Wall Street Journal...

for example if A = {a,b,c} then all possible subsets are {a}, {b}, {c}, {a,b}, {a,c}, {b,c},{a,b,c} and combinations of subsets which cover the original set are: {{a},{b,c}} and {{a},{b},{c}} and...

Given q∈C where C⊂R^n. In addition, given two subsets M1,M2⊂C such that q∈M1, q∈M2 and μ(M1)=μ(M2)=(1/2)μ(C) where μ(S) is the volume of S⊂C. I can easily prove that μ(M1∪M2)<μ(C) with...

how do i solve this

Hi I have 2 problems that I need to say whether or not they are true or not and then write a proof for my answer. I am really struggling and could use a little help thank you 1) ...

I would like to know if I did this work correctly http://imgur.com/a/duDPT Picture of the work above My original set : = {0,1,4,6,8} I am...

Let A, B and C be different sets containing letters of the alphabet. Explain why there must exist some letter that is either contained in exactly one of the sets or contained in exactly two...

thats pretty much it

set theory

Professor says this question is a lot simpler than I think

This is a set theory problem my teacher say its easier than I think but I don't understand.

Show that if f is a function of one variable that is recursive, nondecreasing, and unbounded then its range is an infinite recursive set. and Show that every infinite recursive set is the...

Let U={w, x, y,1, 2, 3} , A ={2, y} , B = {x, y, 3}, C ={w, y,1} Find AU B' Find n(B-A) find AXB

Suppose that R=R1⊕R2⊕…….⊕Rn where each Ri is a principal ideal ring. Verify that R is also a principal ideal ring. please I want help with that

I can't find an example of how to solve when n(A) and n(B) are not given. Please help.

http://imgur.com/a/gG7dj I am stuck on the very bottom problem. I have defined k1-9 and r1-9. If there is a better way way to upload a picture then please tell me ...

A⊆B ----------------- |(P(A))| ≤ |(P(B))| Not sure if the bottom symbols are right but its the cardinality of power set A and the cardinality of power set B The sets are...

Let R be a commutative ring with identity and the elements a, e ∈ R, with e^2 = e. Prove that a) If (a) = (e), then a and e are associates. [Hint: a = (1 - e + a)e.] b)...

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