X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fs_transition%2Ffqu_weight.ma;h=8f6d321a252290b46d953d7365a611631212b7af;hp=93148750f5544f527d8ae52189a25eef0eb2bd0d;hb=222044da28742b24584549ba86b1805a87def070;hpb=09b4420070d6a71990e16211e499b51dbb0742cb

diff --git a/matita/matita/contribs/lambdadelta/basic_2/s_transition/fqu_weight.ma b/matita/matita/contribs/lambdadelta/basic_2/s_transition/fqu_weight.ma
index 93148750f..8f6d321a2 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/s_transition/fqu_weight.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/s_transition/fqu_weight.ma
@@ -20,17 +20,18 @@ include "basic_2/s_transition/fqu.ma".
 
 (* Forward lemmas with weight for closures **********************************)
 
-lemma fqu_fwd_fw: ∀G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2⦄ → ♯{G2, L2, T2} < ♯{G1, L1, T1}.
-#G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2 //
-#I #I1 #I2 #G #L #V #HI12 normalize in ⊢ (?%%); -I
-<(lifts_fwd_tw … HI12) -I1 /3 width=1 by monotonic_lt_plus_r, monotonic_lt_plus_l/
+lemma fqu_fwd_fw: ∀b,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ⊐[b] ⦃G2, L2, T2⦄ →
+                  ♯{G2, L2, T2} < ♯{G1, L1, T1}.
+#b #G1 #G2 #L1 #L2 #T1 #T2 #H elim H -G1 -G2 -L1 -L2 -T1 -T2 //
+#I #I1 #I2 #G #L #HI12 normalize in ⊢ (?%%); -I1
+<(lifts_fwd_tw … HI12) /3 width=1 by monotonic_lt_plus_r, monotonic_lt_plus_l/
 qed-.
 
 (* Advanced eliminators *****************************************************)
 
-lemma fqu_wf_ind: ∀R:relation3 …. (
-                     ∀G1,L1,T1. (∀G2,L2,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2⦄ → R G2 L2 T2) →
-		                 R G1 L1 T1
-		              ) → ∀G1,L1,T1. R G1 L1 T1.
-#R #HR @(f3_ind … fw) #x #IHx #G1 #L1 #T1 #H destruct /4 width=1 by fqu_fwd_fw/
+lemma fqu_wf_ind: ∀b. ∀Q:relation3 …. (
+                     ∀G1,L1,T1. (∀G2,L2,T2. ⦃G1, L1, T1⦄ ⊐[b] ⦃G2, L2, T2⦄ → Q G2 L2 T2) →
+		                 Q G1 L1 T1
+		              ) → ∀G1,L1,T1. Q G1 L1 T1.
+#b #Q #HQ @(f3_ind … fw) #x #IHx #G1 #L1 #T1 #H destruct /4 width=2 by fqu_fwd_fw/
 qed-.