- intermediate commit to allow debugging of auto tactic in xprs.ma

[helm.git] / matita / matita / contribs / lambda_delta / basic_2 / unwind / sstas_sstas.ma

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unwind/sstas_sstas.ma b/matita/matita/contribs/lambda_delta/basic_2/unwind/sstas_sstas.ma
index 9df5b0b47ed374058a4d4b1ce02ed67cd32a80cf..03cbc46c7898e419bc2339daa7663bd1d4cdc52a 100644 (file)
--- a/matita/matita/contribs/lambda_delta/basic_2/unwind/sstas_sstas.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unwind/sstas_sstas.ma
@@ -53,7 +53,7 @@ qed-.
 
 fact sstas_inv_lref1_aux: ∀h,g,L,T,U. ⦃h, L⦄ ⊢ T •*[g] U → ∀j. T = #j →
                           ∃∃I,K,V,W. ⇩[0, j] L ≡ K. ⓑ{I}V & ⦃h, K⦄ ⊢ V •*[g] W &
-                                     L ⊢ U ▼*[0, j + 1] ≡ W.
+                                     L ⊢ ▼*[0, j + 1] U ≡ W.
 #h #g #L #T #U #H @(sstas_ind_alt … H) -T
 [ #T #HUT #j #H destruct
   elim (ssta_inv_lref1 … HUT) -HUT * #K #V #W [2: #l] #HLK #HVW #HVT