(* Constructions with pr_id *************************************************)
(*** id_isid *)
-lemma pr_isi_id: ð\9d\90\88â\9dªð\9d\90¢â\9d«.
+lemma pr_isi_id: ð\9d\90\88â\9d¨ð\9d\90¢â\9d©.
/2 width=1 by pr_eq_push_isi/ qed.
(* Alternative definition with pr_id and pr_eq ******************************)
(*** eq_id_isid *)
-lemma pr_eq_id_isi (f): ð\9d\90¢ â\89¡ f â\86\92 ð\9d\90\88â\9dªfâ\9d«.
+lemma pr_eq_id_isi (f): ð\9d\90¢ â\89¡ f â\86\92 ð\9d\90\88â\9d¨fâ\9d©.
/2 width=3 by pr_isi_eq_repl_back/ qed.
(*** eq_id_inv_isid *)
-lemma pr_isi_inv_eq_id (f): ð\9d\90\88â\9dªfâ\9d« → 𝐢 ≡ f.
+lemma pr_isi_inv_eq_id (f): ð\9d\90\88â\9d¨fâ\9d© → 𝐢 ≡ f.
/2 width=1 by pr_isi_inv_eq_repl/ qed-.