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Jul 14, 2018 at 11:40 history closed Ivan Izmestiev
abx
Neil Strickland
Stefan Kohl
Andreas Blass
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Jul 14, 2018 at 8:25 vote accept Đào Thanh Oai
Jul 14, 2018 at 7:41 answer added Aaron Meyerowitz timeline score: 1
Jul 13, 2018 at 14:15 vote accept Đào Thanh Oai
Jul 13, 2018 at 14:16
Jul 13, 2018 at 7:18 review Close votes
Jul 14, 2018 at 11:40
Jul 13, 2018 at 6:48 answer added Hee Kwon Lee timeline score: 1
Jul 13, 2018 at 6:44 comment added Đào Thanh Oai I am sorry. I Correction condition 3.
Jul 13, 2018 at 6:43 history edited Đào Thanh Oai CC BY-SA 4.0
edited body
Jul 13, 2018 at 6:38 comment added Hee Kwon Lee If $f''>0$ (that is it is the situation in the picture), then condition 3 is right ?
Jul 13, 2018 at 6:28 history asked Đào Thanh Oai CC BY-SA 4.0