David Schrittesser

most citedTwo-Person Adversarial Games are Zero-Sum: An Elaboration of a Folk Theorem

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math.GR2022

Definability of maximal cofinitary groups

Severin Mejak, David Schrittesser

We present a proof of a result, previously announced by the second author, that there is a closed (even $Π_{1}^{0}$ ) set generating an $F_{σ}$ (even $Σ_{2}^{0}$ ) maximal cofinitary group (sh…