Question

empty set is the subset of every set how?

Answer 1

make a subset of a set S that contains no element

Answer 2

which means that null set is subset of S
for every set other than S you can do this ... so null set is subset of every set

Answer 3

for example\[\{\}\in\{x\}\]

Answer 4

To be precise
\[
\{ \} \subset {x}
\]

Answer 5

{}∈{x} how?