few more steps

diff --git a/helm/software/matita/contribs/dama/dama/models/q_function.ma b/helm/software/matita/contribs/dama/dama/models/q_function.ma
index 624755ed77a4c3e6e48f9795e88bc5b20ab48124..bb3ba55fc8c49ff33bacbef1b8f5c2c6b8fd81f1 100644 (file)
--- a/helm/software/matita/contribs/dama/dama/models/q_function.ma
+++ b/helm/software/matita/contribs/dama/dama/models/q_function.ma
@@ -51,11 +51,11 @@ whd in ⊢ (% → ?); simplify in H3;
         cut (\fst w2 = O); [2: clear H10;
           symmetry; apply le_n_O_to_eq; rewrite > (sum_bases_O l1 (\fst w2)); [apply le_n]
           apply (q_le_trans ??? H9); rewrite < H4; rewrite > q_d_x_x; 
-          left; reflexivity;]
+          apply q_eq_to_le; reflexivity;]
         rewrite > Hcut; clear Hcut H10 H9; simplify in H5 H6;
         cut (ⅆ[input,init] = Qpos w) as E; [2:
           rewrite > H2; rewrite < H4; rewrite > q_d_sym; 
-          rewrite > q_d_noabs; [reflexivity] right; assumption;]
+          rewrite > q_d_noabs; [reflexivity] apply q_lt_to_le; assumption;]
         cases (\fst w1) in H5 H6; intros;
         [1: cases (?:False); clear H5; simplify in H6;
             apply (q_lt_corefl ⅆ[input,init]);
@@ -69,10 +69,13 @@ whd in ⊢ (% → ?); simplify in H3;
             apply q_le_minus_r; rewrite < q_minus_r; 
             rewrite < E in ⊢ (??%); assumption;]
     |2: intros; rewrite > H8; rewrite > H7; clear H8 H7;
-        simplify in H5 H6 ⊢ %;
-        simplify in H5:(? ? (? ? %));
+        simplify in H5 H6 ⊢ %; 
+        cases (\fst w1) in H5 H6; [intros; reflexivity]
+        cases (bars l1);
+        [1: intros; simplify; elim n [reflexivity] simplify; assumption;
+        |2: simplify; intros; cases (?:False);
         
-            
+STOP            
         
 alias symbol "pi2" = "pair pi2".
 alias symbol "pi1" = "pair pi1".