Recent content by uncledub

I stopped there because I assumed I could stop after I found it was not true. On my other problems I did examine the intersections as well. Thank you.

Homework Statement Which of the following collections are topologies for the real numbers? If a collection is not a topology for the real numbers, explain why not. Homework Equations {R,empty set, (1,3), (2,4)} The Attempt at a Solution Not a topology because (1,3) U (2,4) = (1,4)...

Thank you so much.

The only assumption that I have is that the complement would be (-oo, a) U (b, oo). But still I am not sure if that is what they mean in this context.

Topology, Proofs, The word "Complement" Homework Statement I have a proof to do in which they use the word "complement". I am not sure what it means by that withing the context of the question. There is no glossary to the book and there is no mention of complement before this question...

This is the introductory course that is given by the math department before any Masters level math courses. I passed all of my Bachelors level classes with flying colors. But it was at a different University so maybe I was short changed in my education. I thought I was going to take my 18 hours...

Introduction to Topology - Baker The entire book is like this. It is awful. You have to have a Masters in Mathematics to understand it.

Does this show up?

I use computers and I have never learned DOS, or COBOL. And I never will. I have made websites and I never learned HTML (other than a few simple commands), PHP, etc. I am not sure what the correlation is between learning proofs and learning latex. When I type up my assignments I use MathType...

I don't know what latex is in this context. Will MathType paste in here?

Homework Statement f^-1(Union{Vsub alpha : alpha belongs to Lambda})=Union{f^-1(Vsub alpha): alpha belongs to Lambda} Homework Equations The Attempt at a Solution Assume that x belongs to X. Then x belongs to f^-1(Union{Vsub alpha : alpha belongs to Lambda}) iff f(x) belongs to...