I was about to retag this question when I noticed that neither of the elementary-set-theory or set-theory tags seems to really want questions of this tag.
The tag wikis say:
elementary-set-theory
This tag is for elementary questions on set theory, spanning topics usually found in introd...
I was about to retag this question when I noticed that neither of the elementary-set-theory or set-theory tags seems to really want questions of this tag.
The tag wikis say:
elementary-set-theory
This tag is for elementary questions on set theory, spanning topics usually found in introd...
I will just point out that revision 4 of the [tag-info for elementary-set-theory] contained "transfinite induction, well-orders, ordinal and cardinal arithmetic". It was removed in revision 5. See also this comment exchange around the time when the tag-info was edited. — Martin Sleziak4 mins ago
$A$ and $B$ are fixed points and $k,\lambda\in\mathbb{R}$. If $\lambda=1$ and $AB<k$ we obtain an ellipse. If $\lambda=-1$ and $AB<k$ we obtain an hyperbola. For $|\lambda|\neq 1$, the equation of the locus has the form $\displaystyle y=\sqrt{bx^2+cx+d+\sqrt{mx+n}}$.
What is known about the geo...
$A$ and $B$ are fixed points and $k,\lambda\in\mathbb{R}$. If $\lambda=1$ and $AB<k$ we obtain an ellipse. If $\lambda=-1$ and $AB<k$ we obtain an hyperbola. For $|\lambda|\neq 1$, the equation of the locus has the form $\displaystyle y=\sqrt{bx^2+cx+d+\sqrt{mx+n}}$.
What is known about the geo...
