(* Constructions with rtc_shift *********************************************)
-lemma rtc_isr_shift (c): ð\9d\90\8câ\9dªð\9d\9f\8e,câ\9d« â\86\92 ð\9d\90\8câ\9dªð\9d\9f\8e,â\86\95*câ\9d«.
+lemma rtc_isr_shift (c): ð\9d\90\8câ\9d¨ð\9d\9f\8e,câ\9d© â\86\92 ð\9d\90\8câ\9d¨ð\9d\9f\8e,â\86\95*câ\9d©.
#c * #ri #rs #H destruct /2 width=3 by ex1_2_intro/
qed.
(* Inversions with rtc_shift ************************************************)
-lemma rtc_ism_inv_shift (n) (c): ð\9d\90\8câ\9dªn,â\86\95*câ\9d« â\86\92 â\88§â\88§ ð\9d\90\8câ\9dªð\9d\9f\8e,câ\9d« & 𝟎 = n.
+lemma rtc_ism_inv_shift (n) (c): ð\9d\90\8câ\9d¨n,â\86\95*câ\9d© â\86\92 â\88§â\88§ ð\9d\90\8câ\9d¨ð\9d\9f\8e,câ\9d© & 𝟎 = n.
#n #c * #ri #rs #H
elim (rtc_shift_inv_dx … H) -H #rt0 #rs0 #ti0 #ts0 #_ #_ #H1 #H2 #H3
elim (eq_inv_nmax_zero … H1) -H1 /3 width=3 by ex1_2_intro, conj/
qed-.
-lemma rtc_isr_inv_shift (c): ð\9d\90\8câ\9dªð\9d\9f\8e,â\86\95*câ\9d« â\86\92 ð\9d\90\8câ\9dªð\9d\9f\8e,câ\9d«.
+lemma rtc_isr_inv_shift (c): ð\9d\90\8câ\9d¨ð\9d\9f\8e,â\86\95*câ\9d© â\86\92 ð\9d\90\8câ\9d¨ð\9d\9f\8e,câ\9d©.
#c #H elim (rtc_ism_inv_shift … H) -H //
qed-.