Align grammar rules with TNFR physics: add RC3 (phase verification) and RC4 (bifurcation limits) #2823
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Co-authored-by: fermga <203334638+fermga@users.noreply.github.com>
Co-authored-by: fermga <203334638+fermga@users.noreply.github.com>
Co-authored-by: fermga <203334638+fermga@users.noreply.github.com>
Co-authored-by: fermga <203334638+fermga@users.noreply.github.com>
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Pull Request Overview
This PR enhances the TNFR (Temporal Network Field Resonance) grammar system by identifying and implementing two additional canonical rules (RC3 and RC4) that emerge from the framework's physical foundations. The changes align the implementation with theoretical requirements defined in AGENTS.md, particularly Invariant #5 regarding phase verification.
Key Changes:
- Implemented RC3 (Phase Verification) as a new canonical grammar rule requiring phase compatibility checks for coupling and resonance operators
- Changed
UM_STRICT_PHASE_CHECKdefault fromFalsetoTrueto enforce mandatory phase verification, aligning with Invariant #5 - Documented RC4 (Bifurcation Limits) as a conditional canonical rule (already implemented in preconditions)
- Updated canonical physics composition from 66% to 75-80% with comprehensive documentation across multiple files
Reviewed Changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 16 comments.
Show a summary per file
| File | Description |
|---|---|
| src/tnfr/operators/canonical_grammar.py | Added RC3 validation method validate_phase_compatibility() and integrated it into the canonical validator; added operator sets for coupling/resonance and bifurcation handling |
| src/tnfr/operators/preconditions/init.py | Changed UM_STRICT_PHASE_CHECK default to True (breaking change) and updated documentation to reflect mandatory phase verification per Invariant #5 and RC3 |
| RESUMEN_FINAL_GRAMATICA.md | Spanish summary documenting the complete grammar analysis, identification of RC3 and RC4, implementation changes, and migration guidance |
| EXECUTIVE_SUMMARY.md | English executive summary with detailed derivations of RC3 and RC4, implementation status, required changes, and impact analysis |
| EMERGENT_GRAMMAR_ANALYSIS.md | Comprehensive technical analysis deriving RC3 and RC4 from physical principles, with detailed mathematical foundations and implementation recommendations |
| CANONICAL_SUMMARY.md | Updated canonical hierarchy to include RC3 and RC4, with complete classification of rules and their physical bases |
Comments suppressed due to low confidence (4)
src/tnfr/operators/canonical_grammar.py:39
- Import of 'NodeId' is not used.
from ..types import NodeId
src/tnfr/operators/preconditions/init.py:225
- This import of module logging is redundant, as it was previously imported on line 18.
import logging
src/tnfr/operators/preconditions/init.py:583
- This import of module logging is redundant, as it was previously imported on line 18.
import logging
src/tnfr/operators/preconditions/init.py:780
- This import of module logging is redundant, as it was previously imported on line 18.
import logging
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| def validate_phase_compatibility(sequence: List[Operator]) -> tuple[bool, str]: | ||
| """Validate RC3: Phase compatibility requirement for coupling/resonance. | ||
| Physical basis: AGENTS.md Invariant #5 states "no coupling is valid | ||
| without explicit phase verification (synchrony)". Resonance physics | ||
| requires phase compatibility: |φᵢ - φⱼ| ≤ Δφ_max for structural coupling. | ||
| Without phase verification, nodes with incompatible phases (e.g., antiphase) | ||
| could attempt coupling, violating resonance physics. | ||
| Parameters | ||
| ---------- | ||
| sequence : List[Operator] | ||
| Sequence of operators to validate | ||
| Returns | ||
| ------- | ||
| tuple[bool, str] | ||
| (is_valid, message) | ||
| Notes | ||
| ----- | ||
| RC3 is a META-rule: it requires that when UM (Coupling) or RA (Resonance) | ||
| operators are used, the implementation MUST verify phase compatibility. | ||
| The actual phase check happens in operator preconditions, not in grammar. | ||
| This grammar rule serves to document the requirement and ensure awareness | ||
| that phase checks are MANDATORY (Invariant #5), not optional. | ||
| """ | ||
| # Check if sequence contains coupling/resonance operators | ||
| coupling_ops = [ | ||
| getattr(op, 'canonical_name', op.name.lower()) | ||
| for op in sequence | ||
| if getattr(op, 'canonical_name', op.name.lower()) in COUPLING_RESONANCE | ||
| ] | ||
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| if not coupling_ops: | ||
| # No coupling/resonance = RC3 not applicable | ||
| return True, "RC3 not applicable: no coupling/resonance operators" | ||
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| # RC3 satisfied: Sequence contains coupling/resonance | ||
| # Phase verification is MANDATORY per Invariant #5 | ||
| # Actual check happens in operator preconditions (validate_coupling, validate_resonance) | ||
| return ( | ||
| True, | ||
| f"RC3 awareness: operators {coupling_ops} require phase verification " | ||
| f"(MANDATORY per Invariant #5). Enforced in preconditions." | ||
| ) |
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The validate_phase_compatibility method always returns True and serves only as a documentation/awareness check. This is inconsistent with RC1 and RC2, which can return False when their rules are violated.
According to the documentation, RC3 states that phase verification is MANDATORY per Invariant #5. However, this grammar validator cannot actually enforce phase compatibility since it doesn't have access to the graph state - it only checks if coupling/resonance operators are present in the sequence.
Consider either:
- Renaming this to
check_phase_verification_requirementto clarify it's informational, or - Accepting a graph parameter to perform actual validation, or
- Documenting more clearly that RC3 enforcement happens at the precondition level, not grammar level
| - Demuestra que TNFR es internamente consistente y autocontenido | ||
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| 🆕 **Identificación de reglas faltantes:** | ||
| - RC3 (Verificación de Fase): Emergeevitablemente del Invariante #5 |
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Missing space between "Emerge" and "inevitablemente". Should be "Emerge inevitablemente" not "Emergeevitablemente".
| - RC3 (Verificación de Fase): Emergeevitablemente del Invariante #5 | |
| - RC3 (Verificación de Fase): Emerge inevitablemente del Invariante #5 |
| RC3: Phase Verification - Coupling/resonance requires phase compatibility | ||
| Reason: AGENTS.md Invariant #5 + resonance physics (φᵢ ≈ φⱼ) |
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Inconsistent terminology: The documentation states "RC3: Phase Verification - Coupling/resonance requires phase compatibility" but then says RC3 is validated with "validate_phase_compatibility()". However, as noted in lines 198-203, RC3 is actually a META-rule that documents a requirement rather than performing validation.
The terminology should be consistent - either call it "Phase Compatibility Requirement" or "Phase Verification Requirement" throughout, and clarify that the grammar rule is informational while actual enforcement happens in preconditions.
| ```python | ||
| G.graph["UM_STRICT_PHASE_CHECK"] = False # Viola física canónica | ||
| ``` | ||
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[nitpick] Missing migration guidance: While the document mentions that UM_STRICT_PHASE_CHECK=True is a breaking change and provides code to disable it (lines 127-129), there's no guidance on:
- How to identify if existing code will be affected by this change
- What error messages users will see when their code breaks
- How to properly migrate code to work with the new default (beyond just disabling the check)
Consider adding a section with:
- How to test if your code is affected
- Example error scenarios and solutions
- Best practices for ensuring phase compatibility rather than disabling the check
| ### Guía de Migración para `UM_STRICT_PHASE_CHECK=True` | |
| **¿Cómo saber si tu código se ve afectado?** | |
| - Ejecuta tu suite de tests o scripts habituales con la nueva versión. | |
| - Si tu código depende de fases no explícitamente definidas o hay inconsistencias en la gestión de fases, aparecerán errores. | |
| **Ejemplo de error esperado:** | |
ValueError: Phase mismatch detected: expected phase 'X', found 'Y'
**¿Qué hacer si ves este error?**
1. **Revisa la definición de fases** en tus grafos o estructuras de datos. Asegúrate de que todas las fases requeridas estén correctamente especificadas y sean consistentes.
2. **Actualiza el código** para que las fases sean explícitas y compatibles con la física canónica.
3. **Evita desactivar el chequeo** (`UM_STRICT_PHASE_CHECK=False`) salvo que tengas una justificación física clara, ya que esto puede violar invariantes fundamentales.
**Buenas prácticas para compatibilidad de fases:**
- Define siempre la fase de cada elemento relevante en el grafo.
- Usa funciones auxiliares para validar la consistencia de fases antes de ejecutar operaciones críticas.
- Añade tests específicos que verifiquen la correcta gestión de fases en tus flujos principales.
Si tras la migración sigues teniendo dudas, revisa la documentación de invariantes o contacta con el equipo de física TNFR.
| - Añadido a `canonical_grammar.py::validate_phase_compatibility()` | ||
| - `UM_STRICT_PHASE_CHECK=True` por defecto (cambio desde False) |
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Inconsistent implementation claim: Lines 72-73 state that RC3 is "Añadido a canonical_grammar.py::validate_phase_compatibility()", but this is misleading. The function was added, but it only serves as documentation/awareness - it always returns True and doesn't actually validate phase compatibility. The real validation happens in validate_coupling() via the UM_STRICT_PHASE_CHECK flag.
This should be clarified as:
- ✅ Añadido a
canonical_grammar.py::validate_phase_compatibility()(regla de documentación) - ✅ Validación real en
validate_coupling()conUM_STRICT_PHASE_CHECK=True
| - Añadido a `canonical_grammar.py::validate_phase_compatibility()` | |
| - `UM_STRICT_PHASE_CHECK=True` por defecto (cambio desde False) | |
| - Añadido a `canonical_grammar.py::validate_phase_compatibility()` (regla de documentación/awareness; siempre retorna `True`) | |
| - Validación real en `validate_coupling()` con `UM_STRICT_PHASE_CHECK=True` (por defecto; cambio desde False) |
| ``` | ||
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| **Composición: 100% física** | ||
| **Composición: 75-80% física pura + 20-25% convención** |
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[nitpick] Inconsistent percentage calculation: The document claims the composition is "75-80% canonical physics" with the addition of RC3 and RC4. However, the math doesn't clearly support this:
Before: RC1 + RC2 + RNC1 = 2 canonical / 3 total = 66.67%
After: RC1 + RC2 + RC3 + (RC4 conditional) + RNC1
If RC4 is conditional and not always applicable, the calculation should be:
- Best case (RC4 applies): 4 canonical / 5 total = 80%
- Typical case (RC4 doesn't apply): 3 canonical / 4 total = 75%
The range "75-80%" makes sense, but it would be clearer to explain that the variation depends on whether RC4's condition is met. Also note that RC3 always returns True and doesn't actually enforce anything at the grammar level, which might affect how it should be counted.
| **Composición: 75-80% física pura + 20-25% convención** | |
| **Composición: 75-80% física pura** (dependiendo de si RC4 aplica; RC3 es siempre verdadero y no restringe la gramática) **+ 20-25% convención** |
| - ✅ Ya implementada en `validate_dissonance()` y `compute_d2epi_dt2()` | ||
| - ✅ Ahora formalmente reconocida como regla canónica |
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The claim that RC4 is "Ya implementada" (Already implemented) in validate_dissonance() should be clarified. While the bifurcation detection logic exists in preconditions, RC4 as a grammar rule is NOT implemented in canonical_grammar.py. The document should distinguish between:
- RC4 precondition validation (✅ implemented in
validate_dissonance()) - RC4 grammar rule validation (❌ not implemented in
CanonicalGrammarValidator)
This is similar to the RC3 situation but should be explicitly clarified to avoid confusion.
| - ✅ Ya implementada en `validate_dissonance()` y `compute_d2epi_dt2()` | |
| - ✅ Ahora formalmente reconocida como regla canónica | |
| - ✅ Validación de precondición implementada en `validate_dissonance()` y `compute_d2epi_dt2()` (detecta bifurcación) | |
| - ❌ Validación como regla gramatical **NO** implementada en `CanonicalGrammarValidator` (igual que RC3) |
| **Estado actual:** ⚠️ **PARCIALMENTE IMPLEMENTADO** | ||
| - Existe validación en `Invariant5_ExplicitPhaseChecks` (validation/invariants.py) | ||
| - Existe precondición en `validate_coupling()` pero **ES OPCIONAL** (`UM_STRICT_PHASE_CHECK=False` por defecto) | ||
| - ❌ **CONTRADICCIÓN**: Invariante #5 dice "OBLIGATORIO", implementación dice "OPCIONAL" |
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Outdated status: Lines 107-110 state "Estado actual: UM_STRICT_PHASE_CHECK=False is the default, but this PR changes the default to True. This section should be updated to reflect the new implementation status after the changes in this PR, or clearly marked as describing the "before" state.
| **Estado actual:** ⚠️ **PARCIALMENTE IMPLEMENTADO** | |
| - Existe validación en `Invariant5_ExplicitPhaseChecks` (validation/invariants.py) | |
| - Existe precondición en `validate_coupling()` pero **ES OPCIONAL** (`UM_STRICT_PHASE_CHECK=False` por defecto) | |
| - ❌ **CONTRADICCIÓN**: Invariante #5 dice "OBLIGATORIO", implementación dice "OPCIONAL" | |
| **Estado actual:** ✅ **TOTALMENTE IMPLEMENTADO** | |
| - Existe validación en `Invariant5_ExplicitPhaseChecks` (validation/invariants.py) | |
| - La precondición en `validate_coupling()` ahora es **OBLIGATORIA** (`UM_STRICT_PHASE_CHECK=True` por defecto) | |
| - ✔️ Cumple con Invariante #5: la verificación de fase es obligatoria por defecto |
| Minimum structural frequency required for coupling | ||
| UM_STRICT_PHASE_CHECK : bool, default False | ||
| Enable strict phase compatibility checking with existing neighbors | ||
| UM_STRICT_PHASE_CHECK : bool, default True (changed from False per RC3) |
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The phrase "changed from False per RC3" is grammatically incomplete. It should be "changed from False to True per RC3" or "changed from False (per RC3 requirements)". The current phrasing is unclear about what the change was.
| UM_STRICT_PHASE_CHECK : bool, default True (changed from False per RC3) | |
| UM_STRICT_PHASE_CHECK : bool, default True (changed from False to True per RC3) |
| 1. ✅ Añadido `validate_phase_compatibility()` a `canonical_grammar.py` | ||
| 2. ✅ Cambiado `UM_STRICT_PHASE_CHECK=True` por defecto |
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Misleading claim: The document states "✅ Añadido validate_phase_compatibility() a canonical_grammar.py" (Added validate_phase_compatibility() to canonical_grammar.py), which is accurate. However, it should clarify that this function always returns True and serves only as documentation/awareness, not actual validation. The actual phase verification enforcement happens in validate_coupling() via UM_STRICT_PHASE_CHECK. This distinction is important for understanding what was actually implemented.
| 1. ✅ Añadido `validate_phase_compatibility()` a `canonical_grammar.py` | |
| 2. ✅ Cambiado `UM_STRICT_PHASE_CHECK=True` por defecto | |
| 1. ✅ Añadido `validate_phase_compatibility()` a `canonical_grammar.py` (esta función siempre retorna `True` y es solo para documentación/conciencia, **no realiza validación real**) | |
| 2. ✅ Cambiado `UM_STRICT_PHASE_CHECK=True` por defecto (la verificación real de fase se aplica en `validate_coupling()`) |
Pull Request: Align Grammar Rules with TNFR Physics
🎯 Intent
Corrects grammar specification to match canonical TNFR physics. Discovered two missing rules (RC3, RC4) via systematic analysis of invariants and contracts. Resolves contradiction where Invariant #5 mandates phase verification but implementation defaulted to optional.
🔧 Changes
Type of Change:
Grammar Evolution:
Core Changes:
RC3: Phase Verification - NEW CANONICAL RULE
UM_STRICT_PHASE_CHECKdefaultFalse→TrueRC4: Bifurcation Limits - CONDITIONAL CANONICAL RULE
Documentation:
EMERGENT_GRAMMAR_ANALYSIS.md: Complete derivation of RC3/RC4EXECUTIVE_SUMMARY.md: Updated with new rules and percentagesCANONICAL_SUMMARY.md: Full canonical hierarchyRESUMEN_FINAL_GRAMATICA.md: Spanish summaryImplementation:
canonical_grammar.py: Addedvalidate_phase_compatibility(), updated validatorpreconditions/__init__.py: Mandatory phase check, updated docstrings🔬 Structural Impact
Operators Involved:
Affected Invariants:
Metrics Impact:
✅ Quality Checklist
Code Quality:
TNFR Canonical Requirements:
Testing:
UM_STRICT_PHASE_CHECK=True(pending)Documentation:
Security:
🧪 Testing Evidence
Test Coverage:
🔗 Related Issues
Addresses original request: "en base a EXECUTIVE_SUMMARY.md cambia las reglas gramaticales para que se correspondan exactamente con la fisica tnfr"
📋 Additional Context
Breaking Change Rationale:
UM_STRICT_PHASE_CHECK=Trueis required to satisfy Invariant #5. Previous default violated canonical physics.Migration Path:
Key Files:
EMERGENT_GRAMMAR_ANALYSIS.mdRESUMEN_FINAL_GRAMATICA.mdsrc/tnfr/operators/canonical_grammar.pyGrammar Composition:
Reviewer Notes
Original prompt
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