X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2A%2Freduction%2Fcnr.ma;h=e8e5b7d9fe5769f42cbbb3533d417bcb7a0edfb2;hp=94045fca2c4a08e6d1ffcdb181cacf0c46f1fa64;hb=2f6f2b7c01d47d23f61dd48d767bcb37aecdcfea;hpb=3a4509b8e569181979f5b15808361c83eb1ae49a

diff --git a/matita/matita/contribs/lambdadelta/basic_2A/reduction/cnr.ma b/matita/matita/contribs/lambdadelta/basic_2A/reduction/cnr.ma
index 94045fca2..e8e5b7d9f 100644
--- a/matita/matita/contribs/lambdadelta/basic_2A/reduction/cnr.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2A/reduction/cnr.ma
@@ -76,7 +76,6 @@ qed-.
 
 (* Basic properties *********************************************************)
 
-(* Basic_1: was: nf2_sort *)
 lemma cnr_sort: ∀G,L,k. ⦃G, L⦄ ⊢ ➡ 𝐍⦃⋆k⦄.
 #G #L #k #X #H
 >(cpr_inv_sort1 … H) //
@@ -88,27 +87,21 @@ lemma cnr_lref_free: ∀G,L,i. |L| ≤ i → ⦃G, L⦄ ⊢ ➡ 𝐍⦃#i⦄.
 #H elim (lt_refl_false i) /2 width=3 by lt_to_le_to_lt/
 qed.
 
-(* Basic_1: was only: nf2_csort_lref *)
 lemma cnr_lref_atom: ∀G,L,i. ⬇[i] L ≡ ⋆ → ⦃G, L⦄ ⊢ ➡ 𝐍⦃#i⦄.
 #G #L #i #HL @cnr_lref_free >(drop_fwd_length … HL) -HL //
 qed.
 
-(* Basic_1: was: nf2_abst *)
 lemma cnr_abst: ∀a,G,L,W,T. ⦃G, L⦄ ⊢ ➡ 𝐍⦃W⦄ → ⦃G, L.ⓛW⦄ ⊢ ➡ 𝐍⦃T⦄ → ⦃G, L⦄ ⊢ ➡ 𝐍⦃ⓛ{a}W.T⦄.
 #a #G #L #W #T #HW #HT #X #H
 elim (cpr_inv_abst1 … H) -H #W0 #T0 #HW0 #HT0 #H destruct
 <(HW … HW0) -W0 <(HT … HT0) -T0 //
 qed.
 
-(* Basic_1: was only: nf2_appl_lref *)
 lemma cnr_appl_simple: ∀G,L,V,T. ⦃G, L⦄ ⊢ ➡ 𝐍⦃V⦄ → ⦃G, L⦄ ⊢ ➡ 𝐍⦃T⦄ → 𝐒⦃T⦄ → ⦃G, L⦄ ⊢ ➡ 𝐍⦃ⓐV.T⦄.
 #G #L #V #T #HV #HT #HS #X #H
 elim (cpr_inv_appl1_simple … H) -H // #V0 #T0 #HV0 #HT0 #H destruct
 <(HV … HV0) -V0 <(HT … HT0) -T0 //
 qed.
 
-(* Basic_1: was: nf2_dec *)
 axiom cnr_dec: ∀G,L,T1. ⦃G, L⦄ ⊢ ➡ 𝐍⦃T1⦄ ∨
                ∃∃T2. ⦃G, L⦄ ⊢ T1 ➡ T2 & (T1 = T2 → ⊥).
-
-(* Basic_1: removed theorems 1: nf2_abst_shift *)