# Electromagnetism — Front Door  
### TriadicFrameworks /docs/theories/electromagnetism/frontdoor.md

Electromagnetism (EM) in TriadicFrameworks is a  
**field‑coherence theory**, not a force‑centric mechanism and not a
particle‑first narrative.

EM = **coherent behavior of the electromagnetic field**.  
Maxwell operators = **structural constraints**, not force laws.  
Light = **self‑consistent field propagation**.  
Charge and current = **divergence/curl source operators**, not objects.

This front door orients students, researchers, and AI agents to the
identity, structure, and safe‑use boundaries of the Electromagnetism
module.

---

## 1. Start here

If you are new to this module, read in this order:

1. **Session context**  
   `/docs/theories/electromagnetism/session_context.md`  
   Identity, drift boundaries, audience, and scope.

2. **Regimes**  
   `/docs/theories/electromagnetism/regimes.md`  
   R1 → R3: classical field stability, dynamic propagation,
   geometry‑coupled multi‑scale EM.

3. **Operators**  
   `/docs/theories/electromagnetism/operators.md`  
   𝓓ᴱ, 𝓓ᴮ, 𝓒ᴱ, 𝓒ᴮ, 𝓢ᶜʰ, 𝓢ᶜᵘʳ, 𝓦, 𝓕, 𝓒ₒₕ, 𝓡𝓮𝓰, 𝓒𝓁.

4. **Operator examples**  
   `/docs/theories/electromagnetism/operator_examples.md`  
   Concrete, field‑first examples of divergence, curl, sources,
   propagation, coherence, and regime transitions.

---

## 2. What this module is

Electromagnetism here is:

- **field‑first**  
- **operator‑driven**  
- **coherence‑based**  
- **geometry‑compatible**  
- **quantization‑compatible**  
- **regime‑aware (R1 → R3)**  
- **zero drift**

EM is not:

- force‑centric  
- particle‑first  
- action‑at‑a‑distance  
- teleological  
- ether‑based  

EM is a **coherent field system**, not a mechanical one.

---

## 3. Structure of the module

Core structural files:

- **`session_context.md`** — identity, drift, audience  
- **`regimes.md`** — R1 → R3 field behavior  
- **`operators.md`** — operator grammar  
- **`operator_examples.md`** — worked examples  
- **`coherence_map.md`** — divergence/curl/propagation/geometry coherence  
- **`lineage.md`** — pre‑Maxwell → Maxwell → relativity → QFT → RTT  
- **`cross_module.md`** — integration with GR, QFT, IT, Thermodynamics, FFT  
- **`engine_notes.md`** — internal behavior for AI/compilers  
- **`simulation_hooks.json`** — divergence, curl, propagation, coherence, collapse hooks  

---

## 4. How to use this module

### For students  
Treat EM as a **coherent field system**:

- divergence defines structure  
- curl defines rotation  
- sources modify operators  
- propagation emerges from self‑consistent field evolution  
- geometry shapes high‑regime behavior  

Avoid force‑centric or particle‑centric interpretations.

### For AI agents / tools  
- Use `session_context.md` as the identity anchor.  
- Use `engine_notes.md` and `simulation_hooks.json` for execution.  
- Preserve coherence, avoid teleology, maintain regime alignment.  

---

## 5. Summary

Electromagnetism in TriadicFrameworks is:

- a **field‑coherence theory**  
- an **operator system** (Maxwell operators)  
- a **geometry‑compatible field model**  
- a **multi‑scale regime system**  
- a **cross‑module backbone** for optics, relativity, circuits, QFT  

It is **not**:

- force‑centric  
- particle‑first  
- action‑at‑a‑distance  
- teleological  

Electromagnetism = **coherent field behavior**.  
Light = **self‑consistent field propagation**.  
Physics = **operator‑driven coherence systems**.