I came across through the following questions, i was able to answer some but confused in the others:
$1. \varnothing \subseteq\varnothing$
$2. \varnothing \subseteq \{\varnothing\}$
$3. \varnothing \in \varnothing$
$4. \varnothing \in \{\varnothing\}$
I know the answer to just 1.
I don't know how to write the above in latex, anyone feel free to edit, and if you can comment the link of mathjax page that was on metastackexchange.
Thanks
$1. \varnothing \subset\varnothing$ $2. \varnothing \subset \{\varnothing\}$ $3. \varnothing \in \varnothing$ $4. \varnothing \in\{\varnothing\}$
into the question because I can't edit it again. $\endgroup$ – beep-boop Aug 30 '14 at 12:44