X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground_2%2Fsteps%2Frtc_ist.ma;h=3f6f70dae955840cadc0f8ce51956703cf83656a;hp=4b4c8ac8fcf4d8812f2e38a6b9bb899ca4e08cc6;hb=bd53c4e895203eb049e75434f638f26b5a161a2b;hpb=3b7b8afcb429a60d716d5226a5b6ab0d003228b1

diff --git a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_ist.ma b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_ist.ma
index 4b4c8ac8f..3f6f70dae 100644
--- a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_ist.ma
+++ b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_ist.ma
@@ -25,32 +25,32 @@ interpretation "test for t-transition counter (rtc)"
 
 (* Basic properties *********************************************************)
 
-lemma isr_00: ðâ¦0,ððâ¦.
+lemma isr_00: ðâª0,ððâ«.
 // qed.
 
-lemma ist_01: ðâ¦1,ððâ¦.
+lemma ist_01: ðâª1,ððâ«.
 // qed.
 
 (* Basic inversion properties ***********************************************)
 
-lemma ist_inv_00: ân. ðâ¦n,ððâ¦ â 0 = n.
+lemma ist_inv_00: ân. ðâªn,ððâ« â 0 = n.
 #n #H destruct //
 qed-.
 
-lemma ist_inv_01: ân. ðâ¦n,ððâ¦ â 1 = n.
+lemma ist_inv_01: ân. ðâªn,ððâ« â 1 = n.
 #n #H destruct //
 qed-.
 
-lemma ist_inv_10: ân. ðâ¦n,ððâ¦ â â¥.
+lemma ist_inv_10: ân. ðâªn,ððâ« â â¥.
 #h #H destruct
 qed-.
 
 (* Main inversion properties ************************************************)
 
-theorem ist_inj: ân1,n2,c. ðâ¦n1,câ¦ â ðâ¦n2,câ¦ â n1 = n2.
+theorem ist_inj: ân1,n2,c. ðâªn1,câ« â ðâªn2,câ« â n1 = n2.
 #n1 #n2 #c #H1 #H2 destruct //
 qed-.
 
-theorem ist_mono: ân,c1,c2. ðâ¦n,c1â¦ â ðâ¦n,c2â¦ â c1 = c2.
+theorem ist_mono: ân,c1,c2. ðâªn,c1â« â ðâªn,c2â« â c1 = c2.
 #n #c1 #c2 #H1 #H2 destruct //
 qed-.