Proving Properties of φ-Representations with the Walnut Theorem-Prover
We revisit a classic theorem of Frougny and Sakarovitch concerning automata for φ-representations, and show how to obtain it in a different and more computationally direct way. Using it, we can find simple, induction-free proofs of existing results in the literature about these representations, in a uniform and straightforward manner. In particular, we can easily and "automatically” recover many of the results of recent papers of Dekking and Van Loon. We also obtain a number of new results on φ-representations.
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