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Chapter 1. Design with the NOR; George Spencer Brown Chapter 2. Transcending Engineering Practice. NOR on the Path from Transistor Technology to Universal Indeterminacy; Albrecht Fritzsche Chapter 3. NOR. Truth table, true distinction; Steffen Roth Chapter 4. Theory, Society and George Spencer Brown; Lars Clausen Chapter 5. Meaning Negation; Franz Hoegl Chapter 6. "oo"; Divyamaan Sahoo Chapter 7. Marking the Mark. George Spencer Brown’s Operator Across the Disciplines; Markus Heidingsfelder, Peter Zeiner, Kelvin Ooi Jian Aun, and Mohammad Arif Sobhan Bhuiyan