I'm always glad to see C. S. Peirce get more public recognition. The article nicely outlines the wide range of his expertise, but doesn't mention one little bit

I'm always glad to see C. S. Peirce get more public recognition. The article nicely outlines the wide range of his expertise, but doesn't mention one little bit of trivia I've always loved. Peirce independently discovered that all logical operations can be expressed as permutations of NOR. Of course, we now rely on this for circuit design, using NAND. Along with Wittgenstein's invention of truth tables, this is one of the seminal early contributions of philosophers to formal logic.