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@BoltonBailey BoltonBailey commented Jan 17, 2026

(Sorry, this is still a WIP, apparently GitHub has automatically "requested reviews", I didn't intend that)

This PR adds a model of Single Tape Turing machines with a composition theorem.

Ultimately, I would like to try to create a unified framework for talking about TMs with variable amounts of tapes / stacks, so that we can eventually prove theorems about the time and space overhead incurred by switching from one model to another.

@BoltonBailey BoltonBailey marked this pull request as draft January 17, 2026 18:18
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