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The Zipper Whose Hole Is a Universe
Execution state is a zipper — the present moment is not a parameter or a modality but a universe that separates tropical past from predicate future. Tic-tac-toe makes the structure visible.
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The Incidence Reduction
With uniform rates, the tic-tac-toe ODE ranks cells by incidence degree — the number of win lines through each one — approximately on the game net and exactly on the decoupled analysis net. The go-pflow and pflow-rs tests are linked, and the rate-recovery procedure is marked as not yet built.
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Tic-Tac-Toe Model
Tic-tac-toe as a Petri net scored by ODE simulation — the plain flow recovers the 4 : 3 : 2 line-count prior but misses forks; declaring the opponent's forced replies as structure makes the evaluator minimax-equivalent.