K-series — Kernel Grammar & Invariants
The K-series defines the kernel grammar of Cohesion Dynamics: the minimal structural invariants and compositional relations that any substrate must support to be CD-compatible.
The K-series separates what must be structurally possible (kernel invariants) from how it is realized (carrier implementations in A-series).
Series Purpose
The K-series serves to:
- Define the kernel grammar: Specify the formal language of admissible composition over configurations and resolutions
- State structural invariants: Identify capabilities substrates must support (conditionally necessary, not sufficient)
- Separate kernel from carrier: Make explicit that kernel defines capabilities; carriers realize them
- Enable formalism independence: Allow multiple mathematical representations (event structures, Petri nets, categories) without privileging any
- Support carrier diversity: Allow alternative implementations (graph-based, order-theoretic, category-theoretic, field-theoretic)
Key Papers
K-GOV — Governance of Epistemic Scope and Necessity Claims
Status: Normative/governance
Paper ID: K-GOV
Location: publishing/staging/K-GOV.md
K-GOV is the authoritative governance framework for interpreting claims in the CD programme. It governs:
- The epistemic status of kernel capabilities (K-CAP)
- Interpretation of “necessary”, “permissive”, and “required” capabilities
- Carrier independence vs. substrate independence
- Conditional necessity vs. logical necessity
- Hardware/implementation/run distinctions
- Correct interpretation of M-series and E-series results
All papers making scope-sensitive, necessity, or independence claims must cite K-GOV.
K-GOV introduces no new ontology or mechanisms; it governs how existing results are to be read. See also the plain-language How to Read Cohesion Dynamics page.
K-KERN — The Cohesion Dynamics Kernel as a Grammar of Composition
Status: Normative/formal specification
Paper ID: K-KERN
Location: publishing/staging/K-KERN.md
K-KERN is the canonical kernel specification. It defines:
- Primitive objects: Configurations (immutable informational structures) and Resolutions (atomic compositional acts)
- Grammar components:
- Consistency predicate:
- Admissibility relation: (structure-relative, ternary)
- Dependency relation: (partial order, acyclic by construction)
- Derived structures: Histories (downward-closed consistent sets), continuation space, reconciliation, modes (interaction-induced equivalence classes), structural resilience, constructors
- Non-commitments: No spacetime, locality, simultaneity, metric structure, background manifold, clocks, schedulers, or privileged formalism
Key clarifications:
- Grammar is kernel-defining, not an optional lens
- Resolutions are compositional facts in the grammar, not spacetime events
- Admissibility is structure-relative; failure induces structural divergence
- Circular justification forbidden by well-founded dependency structure
- Kernel specifies which histories are well-formed; carriers enforce/compute grounding
K-ORD — Order Structure Induced by the Kernel Grammar
Status: Staging
Paper ID: K-ORD
Location: publishing/staging/K-ORD.md
K-ORD establishes a necessary structural consequence of K-KERN: admissible histories are necessarily partially ordered by dependency. No representational formalism, carrier dynamics, or additional assumptions are introduced.
Key Result: Given K-KERN grammar (resolution persistence, admissible reachability), a partial order structure on configuration equivalence classes follows directly.
Classification: This is a kernel consequence, not a lens. The partial order is derived necessarily from K-KERN without additional assumptions, distinguishing it from optional representational lenses.
Why not a lens?
- Requires no additional assumptions beyond K-KERN
- Not optional or representational
- Follows necessarily from kernel grammar
Contrast with lenses: K-LENS-ES requires conflict heredity; K-LENS-PN requires resource interpretation. K-ORD requires nothing beyond K-KERN.
K-LENS Series — Kernel-Level Semantic Lenses
Status: Active
Purpose: Formal semantic mappings between K-KERN grammar and established mathematical frameworks
The K-LENS subseries provides representation theorems showing how K-KERN grammar maps into familiar mathematical frameworks. These are semantic lenses that clarify what additional assumptions are required for each framework representation.
Key Papers:
- K-LENS-ES — Event Structure Lens: Maps K-KERN to prime, stable, and general event structures
- K-LENS-PN — Petri Net Lens: Maps K-KERN to safe Petri nets, occurrence nets, and asynchronous transition systems
Future K-LENS Papers:
- K-LENS-CS (Causal Set lens, conditional)
- K-LENS-CT (Constructor Theory lens, optional)
- K-LENS-QM (Quantum Semantics lens, deferred)
Role: K-LENS papers answer “Given K-KERN, when can it be represented as X?” — not “The kernel is X.” They make explicit what additional assumptions are needed for each framework and preserve carrier independence.
Read full K-LENS Series overview →
Future K-ADAPT Series
Planned papers mapping K-KERN grammar into specific carrier implementations for execution and simulation.
Role: These papers introduce no new ontology. They state additional assumptions required for carrier implementation and demonstrate how K-KERN grammar can be realized computationally. Dependency direction: K-KERN → K-ADAPT-*.
Epistemic Status
K-series papers state conditionally necessary structural capabilities:
- Conditional: Required in explored regimes (M/E-series results), not claimed as logically inevitable
- Necessary: If certain operational regimes are to be realizable, these capabilities must be supported
- Not sufficient: Kernel invariants do not guarantee emergence of constructors, physics, or specific phenomena
Governance: The interpretation of necessity claims, kernel capabilities, and scope is governed by K-GOV. All K-series papers must align with K-GOV’s epistemic framework. See also How to Read Cohesion Dynamics for plain-language guidance.
What K-series does NOT do:
- Prove sufficiency of any capability
- Guarantee emergence of constructors or quantum structure
- Fix parameters or recover SM/GR
- Make ontological commitments beyond Axioms v2
- Privilege any mathematical formalism
- Specify enforcement mechanisms (carrier responsibility)
Relationship to Other Series
K-series vs. F-series (Foundational Postulates)
- F-series: Ontological commitments (what exists: CIUs, constraints, closure)
- K-series: Structural capabilities (what must be possible for certain regimes)
K-series vs. A-series (Carrier Architectures)
- K-series: Kernel invariants (capabilities substrates must support)
- A-series: Carrier implementations (explicit realizations showing feasibility)
- Key distinction: Kernel specifies “what”; carriers demonstrate “how”
- Citation discipline: Papers needing only structural capabilities cite K-KERN; papers needing specific mechanisms (e.g., height functionals, scalar mismatch) cite carrier papers (e.g., Paper A)
K-series vs. M-series (Formal Mechanisms)
- K-series: Structural invariants enabling mechanisms
- M-series: Mechanisms themselves (cohesion, modes, tolerance, constructors)
- M-series results inform kernel capability classification (conditional necessity established via M/E evidence)
K-series vs. B-series (Representational Consequences)
- K-series: Grammar of well-formed histories
- B-series: Structural consequences within histories (branching, irreconcilability, superposition)
How to Read K-series Papers
Appropriate Criticism
- Formal coherence and internal consistency
- Minimality of primitives and relations
- Evidence grounding (are invariants justified by M/E results?)
- Clarity of kernel-carrier separation
- Whether grammar truly defines kernel (not just one representation)
- Whether formalism independence is maintained
Not Appropriate
- Demanding sufficiency proofs (K-series states conditional necessity only)
- Expecting physics derivations (that’s B/G-series scope)
- Criticizing lack of enforcement mechanisms (carrier responsibility)
- Treating K-KERN as one option among many formalisms (grammar is kernel-defining)
- Demanding metric, spacetime, or locality (explicitly excluded)
Series Evolution
Current State:
- K-KERN established as canonical kernel specification
- K1 (transitional/pedagogical paper with capability layers) superseded by K-KERN
- Grammar-first formalism locked in as kernel definition
Future Work:
- K-ADAPT-* series for formalism mappings
- Possible refinements to kernel grammar based on M/E evidence
- Universe-specific regimes forward-declared but not yet formalized
Series Map Context
After Kernel v3 refactor, the CD programme structure is:
- K-series — Kernel grammar & invariants (what must be possible)
- A-series — Carrier architectures (how it can be realized)
- M-series — Emergent mechanisms (what can arise in regimes)
- E-series — Empirical narrowing & elimination
- T-series — Toy models
- (future) K-ADAPT — Mappings from kernel grammar to formalisms
This structure cleanly separates kernel-level (K), realization-level (A), and emergence-level (M) concerns.