Re: Mathematicians are a bit strange ..

Peter Fairbrother <peter@tsto.co.uk> wrote:

 
Or so they say.

[snip]

I digress. I write to ask, what is the ?Greek? letter which looks like a
small p or Greek rho with the stem extended upwards? You see it on
blackboards mostly.

I'm not recognizing that description as among Greek letters ... is it
in charts at either of the following?
<https://en.wikipedia.org/wiki/Greek_alphabet>
<https://en.wikipedia.org/wiki/Greek_script_in_Unicode>

However I'm reminded of thorn (without stroke), as seen at eg
<https://en.wikipedia.org/wiki/Thorn_(letter)>