According to Osho, yes: synthesis can reveal 'no self' as surely as analysis. Add everything—sky, trees, emperor, clouds—until nothing stands outside; the personal Nagasena dissolves and only the One, Brahman, remains. Whether you subtract to zero (emptiness) or add to totality (the Whole), the ego cannot survive. Truth isn’t proved by method; it is discovered.
If you include absolutely everything as yourself, there’s no separate “you” left—just the Whole, like a drop lost in the ocean.