Research proof index

Recover fractional ownership for a read-only element. -/ @[rocq_alias ghost_map_elem_unpersist] theorem ghost_map_elem_unpersist (γ : GName) (k : K) (v : V) : ⊢@{IProp GF} (γ ↪◯MAP[k]{.discard} v) ==∗ ∃ q, (γ ↪◯MAP[k]{.own q} v) := by unfold ghost_map_elem iintro H imod iOwn_updateP update_frag_acquire $$ H with ⟨%a, %Heq, G⟩ obtain ⟨q, Heq⟩ := Heq iexist...