Entry: reductio (n.)
In context: "'Intuition, induction, reductio, what?'"
Definition: Is DFW talking about reductio ad absurdum?
The practice of demonstrating the falsity of a hypothesis, principle, etc., by showing that the consequence of assuming it to be true is something absurd or contradictory; an instance of this; = reduction to the absurd at reduction n. 10b. Also in extended use: the action or an act of carrying something to an absurd extreme.
SNOOT score: 1
Source: Oxford English Dictionary