A cuffed beanie, or toque, with the formal symbolism for the law of non-contradiction in propositional logic.
The formula reads as "not both P and not-P". For any proposition, P, it is a foundational axiom in classical logic that P and not-P cannot simultaneously obtain.
The hat is snug and form-fitting, to keep you warm in the winter.
- 100% Turbo Acrylic
- 12" in length
- Unisex style