« first day (1327 days earlier)      last day (2816 days later) » 

11:09 AM
Raymond Smullyan died ibtimes.co.uk/…
 
3 hours later…
2:32 PM
Hi, I will be very pleased if you mind and response to this question. Thanks a lot...
7
Q: The set of complements equal to the complement of set

Leila HatamiConsider $A \subset \{0,1\}^n$ I want $A$ to have $2$ properties. $1.$ $A$ is increasing, i.e., If $x \in A$ and $x \subseteq y$ then $y \in A$ too. [$x \subseteq y$ means that every coordinate of $y$ is greater that or equal to corresponding coordinate of $x$] $2.$ $A^c$ is equal to set...


« first day (1327 days earlier)      last day (2816 days later) »