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2018-09-03 08:17:17 +0200 | asked a question | Setting relations between variables I have a question about doing this in SAGE. I have a set of variables S_ijkl for i, j, k l in [1..4] and I would like to set the following relations without having to manually type everything in: S_ijkl = S_jikl = S_ijlk = S_jilk, how can I go about doing this? |