I talked with Christian, he is not the original author and forgot where it came
from, probably some coq-club mail.

thanks to Christian Doczkal <doczkal@ps.uni-saarland.de> for the Makefile snippet!

create iris_meta file for meta-theorems (adequacy, lifting lemmas). formulate two of our four lifting lemmas.

write an interface to world_prop, and make iris_core (assertion logic + world satisfaction) work with it