X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freduction%2Fcrr_append.ma;h=e0861ae55623bb4faa11666e1459abe8ef5fd8d1;hb=29973426e0227ee48368d1c24dc0c17bf2baef77;hp=fdb29e2afb85bedd463af81717c7105cd31d8ef2;hpb=f95f6cb21b86f3dad114b21f687aa5df36088064;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/reduction/crr_append.ma b/matita/matita/contribs/lambdadelta/basic_2/reduction/crr_append.ma
index fdb29e2af..e0861ae55 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reduction/crr_append.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reduction/crr_append.ma
@@ -19,14 +19,14 @@ include "basic_2/reduction/crr.ma".
 
 (* Advanved properties ******************************************************)
 
-lemma crr_append_sn: ∀L,K,T. L ⊢ 𝐑⦃T⦄  → K @@ L ⊢ 𝐑⦃T⦄.
+lemma crr_append_sn: ∀L,K,T. ⦃G, L⦄ ⊢ 𝐑⦃T⦄  → K @@ ⦃G, L⦄ ⊢ 𝐑⦃T⦄.
 #L #K0 #T #H elim H -L -T /2 width=1/
 #L #K #V #i #HLK
 lapply (ldrop_fwd_length_lt2 … HLK) #Hi
 lapply (ldrop_O1_append_sn_le … HLK … K0) -HLK /2 width=2/ -Hi /2 width=3/
 qed.
 
-lemma trr_crr: ∀L,T. ⋆ ⊢ 𝐑⦃T⦄ → L ⊢ 𝐑⦃T⦄.
+lemma trr_crr: ∀L,T. ⋆ ⊢ 𝐑⦃T⦄ → ⦃G, L⦄ ⊢ 𝐑⦃T⦄.
 #L #T #H lapply (crr_append_sn … H) //
 qed.
 
@@ -49,7 +49,7 @@ fact crr_inv_labst_last_aux: ∀L1,T,W. L1 ⊢ 𝐑⦃T⦄  →
 ]
 qed.
 
-lemma crr_inv_labst_last: ∀L,T,W. ⋆.ⓛW @@ L ⊢ 𝐑⦃T⦄  → L ⊢ 𝐑⦃T⦄.
+lemma crr_inv_labst_last: ∀L,T,W. ⋆.ⓛW @@ ⦃G, L⦄ ⊢ 𝐑⦃T⦄  → ⦃G, L⦄ ⊢ 𝐑⦃T⦄.
 /2 width=4/ qed-.
 
 lemma crr_inv_trr: ∀T,W. ⋆.ⓛW ⊢ 𝐑⦃T⦄  → ⋆ ⊢ 𝐑⦃T⦄.