---
license: mit
tags:
- pytorch
- safetensors
- threshold-logic
- neuromorphic
---

# threshold-xnor3

3-input XNOR gate. Outputs 1 when an even number of inputs are 1 (0 or 2).

## Architecture

Cascade: XNOR3(a,b,c) = XOR(XNOR(a,b), c)

```
a,b ──► XNOR ──► XOR ──► output
            c ──┘
```

## Parameters

| | |
|---|---|
| Neurons | 6 |
| Layers | 4 |
| Parameters | 18 |
| Magnitude | 19 |

## Truth Table

| a | b | c | output |
|---|---|---|--------|
| 0 | 0 | 0 | 1 |
| 0 | 0 | 1 | 0 |
| 0 | 1 | 0 | 0 |
| 0 | 1 | 1 | 1 |
| 1 | 0 | 0 | 0 |
| 1 | 0 | 1 | 1 |
| 1 | 1 | 0 | 1 |
| 1 | 1 | 1 | 0 |

## Usage

```python
from safetensors.torch import load_file

w = load_file('model.safetensors')
# See model.py for forward pass
```

## License

MIT