Plasmataco Plasmataco

21-11-2017
Mathematics

contestada

Is R-Z(Real numbers - integers) an open topology?

Respuesta :

SecretStupid SecretStupid

28-11-2017

R−Z is a union of countable many open sets so R−ZR−Z is open
I actually didn't know that I had to look it up and got my answer from another site, oppsie doopsies

Ver imagen SecretStupid

Answer Link

Otras preguntas

Why do heart cells have different characteristics than skin cells

Simplify: 2(4x - 6) - 8 + 10x

2. Briefly describe how the Transcontinental Railroad affected the Industrial Revolution

Give an example comparing a perfect competition and a monopoly. Choose a company and discuss the market structure in which you think it operates. Give reasons f

PLEASE HELP URGENT DO NOT WASTE ANSWERS ILL MARK YOU THE BRAINLIEST

Lewis dot structures are models used to show what type of subatomic particle of an atom?

Which statement about this excerpt is correct? Read the excerpt from President Ronald Reagan's Address at Moscow State University Abel But I hope you know I go

The rules an organization establishes to guide behavior are called A. respect B. crimes C. laws D. ethics

How many numbers can you form using the digits 1, 5, 6 and 9 without repetition of digits such that the value of the digit 6 in all those number is 100 times th

What is the effect on the gas’ pressure when compressing a gas to 1/3 of its volume? Explain