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1. • CommentRowNumber1.
   • CommentAuthorDavidRoberts
   • CommentTimeNov 1st 2011
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItexI thought up until just a few minutes ago that I had proved that WISC was equivalent to local essential smallness of $Cat_{ana}$. Mike urged me to put my proof on the lab, but in doing so I discovered it was flawed. So now [[WISC]] just has a proof that the principle implies local essential smallness.

   I thought up until just a few minutes ago that I had proved that WISC was equivalent to local essential smallness of $Cat_{ana}$. Mike urged me to put my proof on the lab, but in doing so I discovered it was flawed. So now WISC just has a proof that the principle implies local essential smallness.

2. • CommentRowNumber2.
   • CommentAuthorDavidRoberts
   • CommentTimeNov 1st 2011
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItexAlso, I posted a [question](http://mathoverflow.net/questions/79565/forcing-the-nonexistence-of-a-certain-set) on MO about showing WISC is independent of ZF. Seems like it's a bit tricky...

   Also, I posted a question on MO about showing WISC is independent of ZF. Seems like it’s a bit tricky…