update in static_2 and basic_2 for the article

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / etc / cnuw_simple.etc

diff --git a/matita/matita/contribs/lambdadelta/basic_2/etc/cnuw_simple.etc b/matita/matita/contribs/lambdadelta/basic_2/etc/cnuw_simple.etc
new file mode 100644 (file)
index 0000000..5b63e8d
--- /dev/null
+++ b/matita/matita/contribs/lambdadelta/basic_2/etc/cnuw_simple.etc
@@ -0,0 +1,7 @@
+(* Advanced forward lemma with with simple terms ****************************)
+(*
+lemma cnuw_fwd_appl_simple (h) (G) (L):
+      ∀V,T. ⦃G,L⦄ ⊢ ➡𝐍𝐖*[h] ⓐV.T → 𝐒⦃T⦄.
+#h #G #L #V #T #HT
+elim (simple_dec_ex T) [ // ] * #p #I #W #U #H destruct
+*)