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Nov 14, 2018 at 10:04 comment added Greg Stevenson Didn't check carefully but this should be ok for ${}^\perp(\mathcal{W}^\perp)$ because $\mathcal{W}^\perp$ is closed under injective envelopes and everything is determined by the injectives it contains.
Nov 14, 2018 at 2:43 history asked Zhaoting Wei CC BY-SA 4.0