The verbal section consists of antonyms, analogies, sentence completion, and reading comprehension.
I don't know much about discreet math. How does it apply in this case?
The GRE verbal section uses very difficult vocabulary. Learning new vocabulary well enough for the GRE was a very daunting task for me.
If you know the words, the test is easy. The trick is knowing the words.
This is exactly how I answered many questions in the Verbal section. (Score: 800 (verbal) 790 (quant) 6.0 (writing)).
as for knowing difficult words, I found that reading a lot helps (vs memorizing word lists). You've seen most words in context before, which helps to distinguish between similar words with different shades of meaning and so on.