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Sep 28, 2023 at 6:52 history edited Michael Greinecker CC BY-SA 4.0
added 15 characters in body
Sep 28, 2023 at 6:52 comment added Michael Greinecker Yes; you are right.
Sep 28, 2023 at 5:16 comment added Saito Thank you for your answer. the graph of $D$ is $T \times [0,1] / \pi(E),$ right?
Sep 23, 2023 at 16:49 vote accept Saito
Sep 22, 2023 at 8:24 history answered Michael Greinecker CC BY-SA 4.0