Propositional Satisfiability (SAT) solvers are routinely used for
solving many function problems.

A natural question that has seldom been addressed is: what is the
best worst-case number of calls to a SAT solver for solving some
target function problem?

This paper develops tighter upper bounds on the query complexity of
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Over the years, proof systems for propositional satisfiability (SAT)
have been extensively studied. Recently, proof systems for
quantified Boolean formulas (QBFs) have also been gaining attention.
Q-resolution is a calculus enabling producing proofs from
DPLL-based QBF solvers. While DPLL has become a dominating technique
for SAT, QBF has been tackled ... more >>>