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Oct 21, 2022 at 2:39 comment added user unknown OK, I confirm that after tensoring with $\mathbb{R}$, the map is still injective, which is actually quite easy to show.
Oct 17, 2022 at 19:14 vote accept user unknown
Oct 17, 2022 at 2:40 history edited user unknown CC BY-SA 4.0
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Oct 17, 2022 at 2:34 history edited user unknown CC BY-SA 4.0
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Oct 17, 2022 at 2:28 answer added Will Sawin timeline score: 1
Oct 17, 2022 at 2:23 history edited user unknown CC BY-SA 4.0
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Oct 17, 2022 at 2:22 comment added user unknown @Will Sawin: Dear Will, I am not sure if this is correct actually. My question should have two consecutive question marks there.
Oct 16, 2022 at 22:47 comment added Will Sawin Why is the homomorphism injective?
Oct 16, 2022 at 20:18 history asked user unknown CC BY-SA 4.0