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when toggle format what by license comment
Jan 8, 2016 at 15:21 answer added Alexandre Eremenko timeline score: 0
Jan 8, 2016 at 12:25 comment added Sebastian Goette If $h$ is idempotent, then it restricts to the identity on its image.
Jan 8, 2016 at 12:08 review First posts
Jan 8, 2016 at 12:26
Jan 8, 2016 at 12:04 history asked Charlie CC BY-SA 3.0