Contradiction Scan¶
Consistency scan — instantiates Metanarrative Coherence and Internal Consistency Check
Applies explicit consistency criteria pairwise across the narrative's claims to flag genuine incompatibilities — X asserted here, not-X implied there — and records each as a logged tension rather than a passing impression.
Once a narrative's claims are laid out, the question is blunt: can they all be true at once? Contradiction Scan answers it mechanically. It fixes, in advance, what will count as an incompatibility — a flat contradiction, a scope-creep where a claim quietly outgrows its stated reach, a causal mismatch, a value that undercuts a stated commitment — and then walks the claim set pair by pair, testing each against those criteria and logging every hit. Its defining move, the thing that distinguishes it from its siblings, is that it is criterion-driven and pairwise: it does not build the map, order the timeline, or decide what to do with an anomaly; it takes a defined notion of "incompatible" and finds where the story violates it. The criteria come first on purpose — deciding what counts as a contradiction before hunting for one is what stops the scan from becoming a fishing expedition that flags every tension the scanner happens to dislike.
Example¶
A political party ships a platform narrative for the campaign: we will cut taxes across the board, expand childcare and eldercare, rebuild the roads, and balance the budget within three years — because a growing economy pays for all of it. Each plank polls well alone. A policy staffer runs a Contradiction Scan before the manifesto is printed.
First she sets the criteria: two claims are incompatible if satisfying both requires resources the narrative elsewhere denies it has, or if one asserts a magnitude another rules out. Then she walks the pairs. "Cut taxes across the board" against "balance the budget in three years" against "the growing economy pays for all of it": the scan flags the trio, because the growth rate the third plank would need to close the gap is one the platform's own economic section calls unrealistic — a magnitude asserted here, denied there. Separately, "rebuild the roads" and "balance the budget in three years" both survive the pairwise test on their own but jointly breach the resource criterion. The scan does not decide which plank to drop or whether the tension is fatal; it hands the campaign a logged list of the exact incompatible pairs, sourced to their passages, so the argument moves from "does this feel affordable" to "these three specific claims cannot all hold."
How it works¶
- Fix the criteria first. Write down what counts as an incompatibility for this narrative — contradiction, scope creep, causal mismatch, value-versus-recommendation clash — with a threshold for each, before looking for violations.
- Walk the pairs. Test claims against each other under the criteria, prioritizing the load-bearing nodes the map flagged rather than blindly comparing all pairs (which explodes quadratically).
- Distinguish direct from derived clashes. Separate claims that contradict on their face from those that clash only through an implication chain, since the second kind hides behind intermediate steps.
- Log, don't adjudicate. Record each hit as a sourced tension with the criterion it breached; the scan reports incompatibilities and stops there, leaving the verdict to the audit.
Tuning parameters¶
- Criterion strictness — how tight the bar for "incompatible" is set. Strict criteria catch subtle clashes but flag borderline tensions as violations; loose ones stay quiet but let real contradictions slip through as "complexity."
- Pairwise depth — whether the scan compares only direct claim pairs or chases derived clashes through implication chains. Deeper chasing finds buried contradictions at rising cost and rising false-positive risk.
- Coverage — exhaustive over all pairs versus targeted at the load-bearing nodes. Exhaustive is thorough but quadratic; targeted is fast but only as good as the map that selected the targets.
- False-positive tolerance — how aggressively ambiguous tensions are reported. High sensitivity surfaces everything and buries the real hits in noise; low sensitivity keeps the log clean but can miss a live contradiction.
- Criterion provenance — whether the criteria are generic or tailored to the narrative's genre (a poem tolerates paradox a policy brief cannot). Tailored criteria fit better but must be justified so they are not gerrymandered to spare a favored claim.
When it helps, and when it misleads¶
Its strength is discipline: by deciding what a contradiction is before hunting for one, it turns "this story feels shaky" into a checkable, sourced list, and it refuses to let rhetorical fluency stand in for consistency — the archetype's core failure mode, where a smooth story is never claim-audited at all. It is the mechanism that most directly enforces the oldest rule in the book, that a thing cannot be both asserted and denied[1] in the same respect at the same time.
Its failure mode is overzealous contradiction-hunting: a scan run with criteria set too strict, or against a narrative that is legitimately plural or paradoxical, will flag genuine complexity as incoherence and flatten a story that was meant to hold a tension. The classic misuse is the reverse — quietly loosening the criteria until a favored claim's contradiction no longer registers, laundering incoherence as acceptable ambiguity. The discipline that guards both directions is to freeze the criteria before the scan and to record which criterion each flag breached, so a disputed hit is argued as "is this really scope creep by our stated rule" rather than by whether the scanner liked the claim.
How it implements the components¶
consistency_criteria— its foundational act: defining what counts as contradiction, scope creep, and causal mismatch for this narrative, with a threshold for each, before any claim is judged.contradiction_and_tension_log— its output: each incompatible pair recorded as a sourced entry tagged with the criterion it breached.
It does not decide whether an anomaly is a legitimate boundary case or a disconfirming contradiction — that sorting lives in exception_and_boundary_register, which is Exception Classification's — and it runs no timeline_and_periodization_map; catching clashes that are specifically temporal or causal is Causal-Temporal Trace's.
Related¶
- Instantiates: Metanarrative Coherence and Internal Consistency Check — it is the criterion-driven detector that populates the tension log.
- Consumes: Claim-Lattice Mapping supplies the externalized claims and dependency edges the scan walks.
- Sibling mechanisms: Causal-Temporal Trace · Claim-Lattice Mapping · Evidence-to-Claim Traceability · Exception Classification · Red-Team Coherence Review · Revision Diff Review · Term-Stability Review · Counter-Narrative Probe · Scope-Boundary Stress Test
Editorial Notes¶
Form Classification¶
Form family: Assessment, Review & Assurance
Rationale: The scan applies predeclared consistency criteria pairwise to existing claims and records each direct or derived incompatibility as a sourced tension, so its operative form is bounded consistency review.
Nearest alternative: Analysis, Modeling & Optimization — Implication analysis helps find clashes, but the mechanism's output is an evidentiary list of criterion breaches for later adjudication rather than a model or optimized result.
Review outcome: Adjudicated after independent review; high confidence.
Origin Attribution¶
Primary origin: Philosophy
Origin pattern: Cross-disciplinary synthesis
Present-day reach: Universal
Rationale: Aristotelian logic cohered the law of non-contradiction, including the same-time and same-respect qualifiers the scan applies to claims.
Related originating lineages:
- Literature & Literary Theory — Narrative criticism contributes systematic cross-checking of claims and term stability across a long account.
Review resolution: Both reviewers agree on logic and close-reading lineages. The scan deliberately combines formal incompatibility testing with textual interpretation and can operate on claims in any domain, supporting cross-disciplinary origin and universal reach.
Encyclopedia synthesis: The exact catalogued form synthesizes established practice rather than reproducing a single standard historical label.
Review outcome: Reconciled after independent review; high confidence.
References¶
[1] Aristotle. Metaphysics, Book IV. Translated by W. D. Ross. Perseus Digital Library (n.d.). States the principle that the same attribute cannot both belong and not belong to the same subject at the same time and in the same respect. registry ↩