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pjmlptoday at 7:29 AM1 replyview on HN

It is the same type theory that has powered Common Lisp and Dylan.


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gugagoretoday at 10:07 AM

We're not using "type theory" the same way, I think. I'm thinking in terms of

    - simply typed lambda calculus
    - System F
    - dependent type theory (MLTT)
    - linear types
    - row types
    - and so on
But it's subtle to talk about. It's not like there is a single type theory that underlies Typescript or Rust, either. These practical languages have partial, (and somewhat post-hoc) formalizations of their systems.
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