you're right i'm wrong. but my saving grace is that they're related https://en.wikipedia.org/wiki/Idempotent_(ring_theory)#Relation_with_involutions https://en.

you're right i'm wrong. but my saving grace is that they're related https://en.wikipedia.org/wiki/Idempotent_(ring_theory)#Relation_with_involutions https://en.wikipedia.org/wiki/Idempotent_(ring_theory)#Relat...