Undercut

An undercut is a challenge that targets not the claim itself but the grounds on which it rests: the method, assumption, or definition that makes the claim meaningful. If the undercut succeeds, the claim loses support even if no direct counterexample is found.

The distinction matters for resolution. A direct attack can be answered with more evidence; an undercut requires re-examining the foundations. In debates, undercuts often go unaddressed because they feel like "changing the subject," but they can be decisive.

In a Dialectical Graph, undercuts are a specific edge type recorded in the Dialectical Graph Edges. Tracking them separately allows the system to distinguish "we disagree on the facts" from "we disagree on how facts should be gathered."