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Mar 28, 2018 at 22:21 vote accept Big AL
Mar 28, 2018 at 22:21 history edited Brian Borchers CC BY-SA 3.0
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Mar 28, 2018 at 22:16 comment added Brian Borchers Sorry, I switched from $w$ and $z$ to $u$ and $v$ half way through the answer. I've edited it to make it consistent.
Mar 28, 2018 at 20:28 comment added Big AL Wow. Thank you. I think I understood all of that but I might take some time to mull it over. Can I check, are $w$ and $z$ directly related to $u$ and $v$. Is it just a change in notation or have I fundamentally misunderstood? Sorry, this does not always come naturally to me.
Mar 28, 2018 at 13:59 history answered Brian Borchers CC BY-SA 3.0