>>13341351>>13341352I've seen iota used a little bit, particularly as an imbedding (I guess since it looks like an "i" for identity), and maybe as some other mapping.
>>13341332I think a lowercase upsilon would be too difficult to use due to its similarity to nu, v and u, and anything other than outstanding penmanship is sure to make it indistinguishable from one of them.
I think I can count on my fingers the number of times I've seen an uppercase xi, but I've never seen an uppercase upsilon used, nor that lowercase sigma variant in OP.
>>13341392Wow, neat!
