X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fstatic%2Fgcp_cr.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fstatic%2Fgcp_cr.ma;h=e14ca2a6f9c18847776888afb83ef9aa4314a9bc;hb=67fe9cec87e129a2a41c75d7ed8456a6f3314421;hp=d13387c3f743120c850910b296d0f984b1dc380d;hpb=86861e6f031df66824a381527dfe847029ff72bc;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/static/gcp_cr.ma b/matita/matita/contribs/lambdadelta/static_2/static/gcp_cr.ma
index d13387c3f..e14ca2a6f 100644
--- a/matita/matita/contribs/lambdadelta/static_2/static/gcp_cr.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/static/gcp_cr.ma
@@ -36,11 +36,11 @@ definition S3 ≝ λC:candidate.
                 C G L (ⒶVs.ⓓ{a}ⓝW.V.T) → C G L (ⒶVs.ⓐV.ⓛ{a}W.T).
 
 definition S5 ≝ λC:candidate. ∀I,G,L,K,Vs,V1,V2,i.
-                C G L (ⒶVs.V2) → ⬆*[↑i] V1 ≘ V2 →
-                ⬇*[i] L ≘ K.ⓑ{I}V1 → C G L (ⒶVs.#i).
+                C G L (ⒶVs.V2) → ⇧*[↑i] V1 ≘ V2 →
+                ⇩*[i] L ≘ K.ⓑ{I}V1 → C G L (ⒶVs.#i).
 
 definition S6 ≝ λRP,C:candidate.
-                ∀G,L,V1b,V2b. ⬆*[1] V1b ≘ V2b →
+                ∀G,L,V1b,V2b. ⇧*[1] V1b ≘ V2b →
                 ∀a,V,T. C G (L.ⓓV) (ⒶV2b.T) → RP G L V → C G L (ⒶV1b.ⓓ{a}V.T).
 
 definition S7 ≝ λC:candidate.
@@ -59,7 +59,7 @@ record gcr (RR:relation4 genv lenv term term) (RS:relation term) (RP,C:candidate
 (* the functional construction for candidates *)
 definition cfun: candidate → candidate → candidate ≝
                  λC1,C2,G,K,T. ∀f,L,W,U.
-                 ⬇*[Ⓕ,f] L ≘ K → ⬆*[f] T ≘ U → C1 G L W → C2 G L (ⓐW.U).
+                 ⇩*[Ⓕ,f] L ≘ K → ⇧*[f] T ≘ U → C1 G L W → C2 G L (ⓐW.U).
 
 (* the reducibility candidate associated to an atomic arity *)
 rec definition acr (RP:candidate) (A:aarity) on A: candidate ≝
@@ -149,7 +149,7 @@ qed.
 
 lemma acr_abst: ∀RR,RS,RP. gcp RR RS RP → gcr RR RS RP RP →
                 ∀p,G,L,W,T,A,B. ⦃G,L,W⦄ ϵ[RP] 〚B〛 → (
-                   ∀b,f,L0,V0,W0,T0. ⬇*[b,f] L0 ≘ L → ⬆*[f] W ≘ W0 → ⬆*[⫯f] T ≘ T0 →
+                   ∀b,f,L0,V0,W0,T0. ⇩*[b,f] L0 ≘ L → ⇧*[f] W ≘ W0 → ⇧*[⫯f] T ≘ T0 →
                                    ⦃G,L0,V0⦄ ϵ[RP] 〚B〛 → ⦃G,L0,W0⦄ ϵ[RP] 〚B〛 → ⦃G,L0.ⓓⓝW0.V0,T0⦄ ϵ[RP] 〚A〛
                 ) →
                 ⦃G,L,ⓛ{p}W.T⦄ ϵ[RP] 〚②B.A〛.