History of G. Spencer-Brown in Timeline

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G. Spencer-Brown

George Spencer-Brown was a British polymath, best known for his book Laws of Form (1969). In this work, he presents a mathematical and philosophical system based on a primary distinction: the act of drawing a distinction itself. This act creates a marked and unmarked state, leading to a calculus of indication. Laws of Form offers a foundation for logic, mathematics, and computation, focusing on self-reference and recursion. It has influenced fields such as systems theory, computer science, and cognitive science, though its formal rigor is sometimes debated.