![subject](/tpl/images/cats/mat.png)
Mathematics, 10.01.2021 20:00 ogbobbythman6154
Let X be a topological space and let C and U be subsets of
X. Define C to be closed if C contains all its limit points and
define U to be open if every point p ∈ U has a neighborhood
which is contained in U. Assuming these definitions show
that the following statements are equivalent for a subset S of
X.
i) S is closed in X;
ii) X – S is open in X;
iii) S = [S].
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:10, iziyahh902
How many solutions does the nonlinear system of equations graphed below have?
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00, lokiliddel
In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.
Answers: 3
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:20, dontworry48
Which graph represents the given linear function 4x+2y=3
Answers: 1
You know the right answer?
Let X be a topological space and let C and U be subsets of
X. Define C to be closed if C contains a...
Questions in other subjects:
![Konu](/tpl/images/cats/mir.png)
World Languages, 22.11.2020 05:50
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.11.2020 05:50
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.11.2020 05:50
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.11.2020 05:50
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 22.11.2020 05:50