On how to have a negated $\eta$

Asked Feb 17 '15 at 22:42

Active Feb 17 '15 at 22:50

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In set theory one often uses $\notin$ as with a slash through $\in$ . How can I produce a similar slash through $\eta$ ?

edited Feb 17 '15 at 22:50

Gonzalo Medina

asked Feb 17 '15 at 22:42

$\not\eta$ ?.. – David Carlisle Feb 17 '15 at 22:43
@DavidCarlisle \not\mathrel{\eta}, perhaps. – egreg Feb 17 '15 at 23:12
My proposal is \mathord{\mkern-1mu\not\mathrel{\mkern1mu\eta}\mkern1mu} Use \mathrel if it must be used as a relation symbol. – egreg Feb 17 '15 at 23:21
@egreg yes I was going to make an answer with space adjustments but one got posted then it was closed as dup.. – David Carlisle Feb 17 '15 at 23:24
It seems that these other suggestions require special packages. – Frode Alfson Bjørdal Feb 17 '15 at 23:32

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