On the 6d Origin of Non-invertible Symmetries in 4d

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Canepa, Cattaneo, https://arxiv.org/abs/2202.08684

Del Zotto, Heckman, Meynet, Moscrop, Zhang, https://arxiv.org/abs/2201.08372

Ohmori, Tizzano, https://arxiv.org/abs/2112.13445