1:00 PM
I have edited a few posts where \Ker was used but not rendered: math.stackexchange.com/posts/3229885/revisions math.stackexchange.com/posts/3015112/revisions math.stackexchange.com/posts/2864579/revisions math.stackexchange.com/posts/1720533/revisions math.stackexchange.com/posts/846393/revisions
search posts Posts with \Ker: data.stackexchange.com/math/revision/972953/1205843/… data.stackexchange.com/math/revision/1066861/1318473/…
search comments Comments with \Ker: data.stackexchange.com/math/query/556789/… data.stackexchange.com/math/revision/1066862/1318474/…
search comments Nothing found with the two newer queries: data.stackexchange.com/math/revision/1066863/1318475/… data.stackexchange.com/math/revision/1066865/1318477/…
There are some comments with \Ker (returned by the first query) - but the macro does not seem to be defined on the page, so this was not caused by the changes in the Stack Exchange software.
1 hour later…
2:27 PM
One of the posts that I've edited contained also the macro \Hull: chat.stackexchange.com/transcript/88939/2019/8/14
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