Interesting theorem and elegant proof. How do you collect

such info? Must be a hobby!

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You mean how did I collect the information? -唐宋韵- 给 唐宋韵 发送悄悄话 唐宋韵 的博客首页 (0 bytes) () 11/15/2023 postreply 17:21:26

Yes -方外居士- 给 方外居士 发送悄悄话 (0 bytes) () 11/15/2023 postreply 17:35:12

It's as if I've been gazing at a — -唐宋韵- 给 唐宋韵 发送悄悄话 唐宋韵 的博客首页 (269 bytes) () 11/15/2023 postreply 18:09:24

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