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Jan 9, 2020 at 9:37 vote accept Fraïssé
Jan 4, 2020 at 9:29 answer added user270013 timeline score: 0
Jan 3, 2020 at 16:07 comment added shimao $\vartheta_k$ is a random variable.
Jan 3, 2020 at 5:25 history asked Fraïssé CC BY-SA 4.0