fn is_satisfiable(&self) -> bool {
        self.answers
            .values()
            .any(|delayed_literals| delayed_literals.is_empty())
    }
/// True if this table has at least one solution without a delayed
/// literal.
True if this table has at least one solution without a delayed
literal.
True if this table has at least one solution without a delayed literal .
fn is_satisfiable(&self) -> bool {
        self.answers
            .values()
            .any(|delayed_literals| delayed_literals.is_empty())
    }
fn is_satisfiable ( & self ) -> bool { self . answers . values ( ) . any ( | delayed_literals | delayed_literals . is_empty ( ) ) }
True if this table has at least one solution without a delayed
literal.
True if this table has at least one solution without a delayed literal .
&self