Thanks for alerting me, indirectly, to the Spival pronouns. I think they're a good, minimalist approach to a fix, but agree they will look distracting until or unless they become commonplace.
I guessed - correctly - it would be the same Spivak who wrote the excellent Calculus textbook.
I guessed - correctly - it would be the same Spivak who wrote the excellent Calculus textbook.