Timeline for Proof that $x^2 + y^2 - z^2$ is universal
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 14, 2020 at 22:39 | comment | added | Will Jagy | @CarloBeenakker thanks, got it | |
| Oct 14, 2020 at 16:46 | comment | added | Carlo Beenakker | the Oppenheim article is here --- behind a paywall, I do have access, I can email it if so desired. | |
| Oct 14, 2020 at 16:06 | history | edited | Will Jagy | CC BY-SA 4.0 |
added 55 characters in body
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| Oct 14, 2020 at 15:43 | history | edited | Will Jagy | CC BY-SA 4.0 |
added 408 characters in body
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| Oct 14, 2020 at 15:31 | history | answered | Will Jagy | CC BY-SA 4.0 |