Posted by Anonymous on .
Prove that for every set S, Ø \subseteq( S.
i need to Use vacuous proof.
i know that vacuous proof is when the hypothesis is always False.
but for this i find it very difficult please can you help me prove this? thanks.

DISCRETE MATHS 
Steve,
a simple web search for
prove null set is a subset of every set
will provide many useful proofs.
As a rule, you might try a web search before posting questions that can be answered with a paragraph, rather than a mathematical solution.