Law of Non-Contradiction: Embroidered Twill Patch (Blue on White)

An embroidered patch made with a durable twill weave featuring the formal symbolism for the law of non-contradiction in propositional logic.

The formula reads as "not both P and not-P". It is a foundational axiom in classical logic that, for any proposition, P, it cannot be the case that both P and not-P.

• White circular patch with blue formula and border in threaded embroidery
  
• 26% cotton, 74% polyester
• 3″ (7.6 cm) in diameter
• Attachment options: iron-on, sew-on, or safety pin