Question

What is the difference between the terms denumerable and enumerable.

Answer 1

synonyms

Answer 2

What's the meaning of them?

Answer 3

a set is "denumarable" if you can count the elements
first, second, third etc

Answer 4

just like when you first learn math as a 4 year old by learning to count things. denumerable means "countable"

Answer 5

A denumerable set is a so-called countable set, an an enumerable set is something that seems to be used in computer science, but is essentially the same thing.

Answer 6

and counting things means you are assigning a positive integer to each item
first item, second item, third item, etc
so it is actually pretty sophisticated. you are creating a one to one function from the positive integers to the elements of the set

Answer 7

so to be very formal, you can say a set S is "denumerable" "countable" etc if there is an injective function (one to one function) from
\[S \to \mathbb N\]

Answer 8

what are you talking about @robot1234

Answer 9

http://mathoverflow.net/questions/20823/denumerable-sets

Answer 10

think maybe robot is bored

Answer 11

Might be a clever method of squeezing a medal from someone who thinks robot1234 is helping

Answer 12

Lol!

Answer 13

watch this

Answer 14

I have seen these earlier, users coming in and just posting a nonsense and expecting to get a medal.

Answer 15

This is a good trick after all

Answer 16

Driveling for medals lol!