Cake thunks #78
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Cake thunks #78
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… proof remains cheated in `state_to_cakeProof`
…hrough singleton env
Proofs updated except thunk_unthunk, thunk_Let_Delay_Var, and thunk_Delay_Lam.
… that
`Force` cannot return a thunk:
- Proofs regarding `thunkLang` were modified to work with the changes.
- A new delayed top-level semantics was added for `thunkLang` to allow
the `thunk_unthunk` proof to work, and an `undelay_next` proof was
added that converts between these semantics and the normal top-level
semantics.
- Wrapping of monads with `Ret`s was transferred from
`pure_to_thunk_1` to `thunk_unthunk`.
- In `pure_to_thunk_2`, the `thunk_unthunk` step now comes right after
`pure_to_thunk_1` and the `undelay` step sits between `thunk_unthunk`
and the rest of the steps.
- A new check that `Cons`' arguments are delayed was added in the
semantics.
Proofs up to and including `pure_to_thunk2` complete without cheats.
There are still cheats in `thunk_Let_Delay_VarScript` and
`thunk_Delay_LamScript` whose proofs are trickier.
…e of `mk_rec_env`
Resolved conflicts
Need to check that `pure_lexer_impl` change is correct. `pure_demands_analysisProof` fails due to changes in HOL and needs fixing. HOL commit 48a676cadda70ad7fc2f6c7b17ecd434f84db113. Cake commit 270490bcc6fcf81c10361fdc2cd750058f84df46.
cake. `pure_demands_analysisProof` needs fix. HOL commit 48a676cadda70ad7fc2f6c7b17ecd434f84db113 cake commit 2ef8c9fe897bd690a4c42e65b4c19b3bd461e58a
`state_to_cakeProof`. Updated state proofs. `state_unthunkProof` is cheated.
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