PS If anyone wonders how to describe cyclic types in a linear fashion: you introduce a type-var binding operator $\mu$ such that $\mu a.t$ represents the solution to $a = t$, where $t$ may contain $a$. Then every closed constant free term has type $\mu a.a \to a$. Tobias
- Cyclic Types Tobias . Nipkow
- Re: Cyclic Types Tobias . Nipkow
- Re: Cyclic Types kff