Practical Register (Reg_P)

The Practical Register Reg_P is the τ-categorical readout functor whose codomain is Norm (normative constraints): the structural interface between the τ-framework and action-guiding content. Reg_P is the second of four canonical readout functors (E/P/D/C). Its coherence criterion is normative consistency — the absence of contradictory obligations within a single action context.

Categorical invariant. Functor Reg_P : K_τ → Norm whose image-objects are normative constraints (imperatives, obligations, permissions, prohibitions) and whose morphisms preserve normative consistency.

Primary registry anchor: VII.D02

Supporting items: VII.D08, VII.D01, VII.D03, VII.D04

1. I.K0 — Universe Postulate
2. VII.D02 — Practical Register Reg_P with codomain Norm
3. VII.D08 — S_P (practical sector) — the τ-sector that Reg_P reads

Reg_P is instantiated whenever a categorical claim is rendered as an action-guiding norm. Reg_P-content answers the question 'What should I do?' and delivers imperatives, obligations, permissions, and prohibitions. Examples: a maxim tested against the Categorical Imperative; a clinical protocol that obliges informed consent; a policy that forbids data exfiltration.

Examples:

• Categorical Imperative gluing — a maxim is universalisable iff it satisfies the sheaf condition on the dignity-filtered site (Reg_P-readout of VII.T31)
• Clinical informed-consent protocol — Reg_P-readout that delivers an obligation binding on the practitioner
• Institutional anti-corruption norm — Reg_P-readout of a sector-S_P content into a contradiction-free obligation set

Register codomain: Norm (normative constraints; obligations, permissions, prohibitions; coherence = normative consistency)

Manuscript reference: manuscript-sources/book-07/part01/ch03.tex

Status: Planned

Related glossary entries

• MG-R01-empirical-register Empirical Register (Reg_E)

Referenced by

• MG-P08-layer-discipline Layer Discipline (Register Discipline)
• MG-P09-earned-unearned Earned / Unearned Ethics Framework