X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground_2%2Fsteps%2Frtc_ist.ma;h=81c584343d538d1a9e1dc0fc7e6c748e30c516eb;hb=25c634037771dff0138e5e8e3d4378183ff49b86;hp=6b9b64681e4372887e234a10d5ac16ba21fae63a;hpb=b4f76b0d8fa0e5365fb48e91474febe200b647a7;p=helm.git

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 6b9b64681..81c584343 100644
--- a/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_ist.ma
+++ b/matita/matita/contribs/lambdadelta/ground_2/steps/rtc_ist.ma
@@ -25,28 +25,32 @@ interpretation "test for t-transition counter (rtc)"
 
 (* Basic properties *********************************************************)
 
-lemma isr_00: ðâ¦0,ððâ¦.
+lemma ist_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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-.