Timeline for describe subsets of the integers closed under the binary operation Ax+By
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 28, 2010 at 8:47 | comment | added | Bugs Bunny | No, $A^2$ is not in $(1)$ and $A(A+B)+B\in (1)$ is not in your set. | |
| Oct 28, 2010 at 7:09 | comment | added | Hany | Wouldn't $(1)$ be the set of all integers of the form $F(A+B)$ where $F$ is a polynomial with positive integer coefficients? | |
| Oct 27, 2010 at 23:47 | history | answered | Bugs Bunny | CC BY-SA 2.5 |