That's quite probable. Honestly, I can't understand why purists tend to dislike PDEs. I mean... Terry Tao does PDEs and he's a Fields medalist! Is it because PD

That's quite probable. Honestly, I can't understand why purists tend to dislike PDEs. I mean... Terry Tao does PDEs and he's a Fields medalist! Is it because PDEs are usually associated with Physics, and hence, are not "pure enough"?