Timeline for Bijective function on a dense set
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Oct 31, 2011 at 12:40 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
deleted 564 characters in body
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| Oct 31, 2011 at 12:36 | comment | added | Joel David Hamkins | Oops. I go back to my first examples, where $f$ is bijective on $D$. | |
| Oct 31, 2011 at 11:07 | comment | added | Guillaume Brunerie | I don't understand. You have $1\in D$ and $f(-1)=1$, so $-1\in f^{-1}(D)$ but $-1\not\in D$. | |
| Oct 31, 2011 at 10:55 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
Square example
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| Oct 31, 2011 at 8:40 | history | answered | Joel David Hamkins | CC BY-SA 3.0 |