# Max-SAT is NP-hard
Last edited: 2026-01-28
# Statement
# Proof
There is a many-one reduction from the SAT problem to max-SAT .
If we have an instance of the SAT problem , we submit it to max-SAT . If the resulting assignment satisfies all clauses, we return it; otherwise, we return no.
As SAT is NP-complete this gives that max-SAT is NP-hard .