Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
c7e68e57cf
@kha I'm not sure if this is the right fix. I just avoided the loop that adds
`mk_expr_placeholder` if the function is not a projection.
I didn't spend time investigating why we need `mk_proj_app`.
I know the library doesn't compile if we don't use it, and just use
```
return mk_app(copy_tag(ref, mk_constant(S_name + fname)), e);
```
:)
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