Mathematical niche-filling news: a few model and set theorists have got together to start a new shared blog “on that *hard to define* area that is perhaps 80% Model Theory and 20% Set Theory”.

It’s wittily called *fff*, short for *Forking, Forcing and back&Forthing*^{1}, and it’s run by Andrés Caicedo, Juan Diego Caycedo, Artem Chernikov, John Goodrick, Ayhan Günaydın, Goyo Mijares, Sonat Suer, Andrés Villaveces.

The new blog is inspired by communal-blogging trailblazers the Secret Blogging Seminar, started by some Berkeley PhD students, and the n-Category Café, run by a mixture of category theorists, physicists and philosophers. The *fff* chaps explain themselves thus:

… a group of Model Theorists and Set Theorists have decided to put up a blog to explain to ourselves (and whoever reads this) why some result we just submitted to a journal is interesting, why some “classical” theorem (or definition, or notion, or example) is worth revisiting, what is our view on some discussion, what on earth is “such and such fancy concept”.

**The blog: **fff (Forking, Forcing and back&Forthing)

*via Richard Elwes on Google+*

- Reminds me of the old joke a biologist told me: “the hyptothalamus controls the four Fs: fighting; fleeing; feeding; and reproduction. Anyway, forking, forcing, and back&forthing are all terms from model and set theory [↩]