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when toggle format what by license comment
Oct 28, 2018 at 13:23 comment added Math604 maybe I am cheating here: to go from $R(T)^\perp = \{0\}$ to $R(T)=Y$ maybe i am using $R(T)$ is closed (which we don't have...apriori... ??)
Oct 28, 2018 at 13:19 history edited Martin Sleziak CC BY-SA 4.0
typo in the title
Oct 28, 2018 at 13:16 history asked Math604 CC BY-SA 4.0