Timeline for Set of natural and rational numbers
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 12, 2018 at 18:15 | review | Low quality posts | |||
| Sep 12, 2018 at 18:35 | |||||
| Sep 12, 2018 at 18:03 | comment | added | user65203 | @user82479: a bijection does not require the the two sets be "compatible", i.e. to share elements. | |
| Sep 12, 2018 at 18:01 | comment | added | user82479 | Certainly, this is easy to see but I am just having difficulty resolving how we can say both sets are isomorphic and yet the rationals are not a subset of the naturals? So the first involves mapping whereas the second involves just elements, thus it doesn't make sense to compare these two questions? | |
| Sep 12, 2018 at 17:55 | history | answered | user65203 | CC BY-SA 4.0 |