A community for students.
Here's the question you clicked on:
 0 viewing
mathmath333
 one year ago
set theory
mathmath333
 one year ago
set theory

This Question is Closed

mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0State which of the following sets are finite or infinite : \(\large \color{black}{\begin{align}& (i)\ \{x : x \in \mathbb{N} \ \ and \ \ (x – 1) (x –2) = 0\} \hspace{.33em}\\~\\ & (ii)\ \{x : x \in \mathbb{N} \ \ and \ \ x^{2} = 4\} \hspace{.33em}\\~\\ & (iii)\ \{x : x \in \mathbb{N} \ \ and \ \ 2x –1 = 0\} \hspace{.33em}\\~\\ \end{align}}\)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0sorry I've done this stuff in the past but i cant recall it well enough.

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.2well lets try each one condition solution :)

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.2to me i and ii are finite and iii is Empty which is also finite

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.2in which way this confuses u @mathmath333 ??

mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0prove that an empty set is finite set

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.2awww thats so cute question :P

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.2i have many proves the most lovely one is using this : there are infinite subsets of an infinite set and there are finite subsets of a finite set. thus subsets of an Empty set is ( 2^0=1) which is finite QED.

mathmath333
 one year ago
Best ResponseYou've already chosen the best response.0does empty set has a subset

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.2yes it does have 1 subset which is also an empty set (itself only)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.