Seal lifetime logic behind a signature

_CoqProject

theories/lifetime/frac_borrow.v

theories/lifetime/lifetime.v

theories/lifetime/lifetime_sig.v

theories/lifetime/model/accessors.v

theories/lifetime/model/borrow.v

theories/lifetime/model/creation.v

theories/lifetime/model/definitions.v

theories/lifetime/model/faking.v

theories/lifetime/model/primitive.v

theories/lifetime/model/raw_reborrow.v

theories/lifetime/model/reborrow.v

theories/lifetime/na_borrow.v

theories/lifetime/shr_borrow.v

theories/typing/borrow.v

theories/typing/cont.v

theories/typing/cont_context.v

theories/typing/fixpoint.v

theories/typing/function.v

theories/typing/lft_contexts.v