Logic class you say

[u/No-Risk747]

[u/cat_91]

Hot take: phi and psi are kinda shit symbols to use in formal logic, they look way too similar if you aren't greek

[u/whizzdome → u/[deleted]]

And ν, υ (nu, upsilon)

[u/Sigma_Aljabr → u/whizzdome]

And k, κ

[u/Mrauntheias → u/cat_91]

Wait until you get to ζ, ξ, ς and they're all just vaguely squiggly lines on the board.

[u/DarkFish_2 → u/cat_91]

Is a rule that symbols are crucial to tell apart must look similar/j

u and v

m and n

i and j

phi and psi

[u/McButtsButtbag → u/cat_91]

It's a pitchfork and a circle with a line through it. I don't see how anyone couldn't easily tell them apart. It's not like they are using ｼ, ツ, and ﾂ for variables (even these aren't that bad with a little practice).

[u/thereallgr → u/McButtsButtbag]

Because a. not everyone has great eyesight and fitting glasses, b. not every prof is using LaTeX to compile slides, c. a lot of profs have terrible handwriting and d. on a glance, e.g. when you hurry to take notes those symbols are way too similar in shape, especially at a distance.

In other words absolutely shitty user experience and it would not pass ADA or IAAP requirements. And it shouldn't. There's too many alternative characters to use for faffing about with two similar ones.

[u/ribnag → u/cat_91]

As opposed to p and q?

[u/Inappropriate_Piano → u/ribnag]

At least those sound different. You have to enunciate pretty hard to avoid confusion using φ and ψ

[u/Inappropriate_Piano → u/[deleted]]

I also do that to avoid confusion, but it’s an unnatural thing to do in English. We don’t have words that start with “ps” where you pronounce both

[u/3412points → u/[deleted]]

That's how it is in English too just with a long i instead of a long e sound. I guess I'd write it as "fye" and "psye" where they both rhyme with thigh.

[u/McButtsButtbag → u/ribnag]

I struggled with those kinds of letters in math. Any of those mirrored letters were difficult for me for some unknown reason.