X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freduction%2Ffpb.ma;h=cce7d39ffeaf44fd98b3e83153a2b6de92861858;hb=93bba1c94779e83184d111cd077d4167e42a74aa;hp=8872199fd35cd35adf76602d4ac7dee228dd4415;hpb=9a023f554e56d6edbbb2eeaf17ce61e31857ef4a;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/reduction/fpb.ma b/matita/matita/contribs/lambdadelta/basic_2/reduction/fpb.ma
index 8872199fd..cce7d39ff 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reduction/fpb.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reduction/fpb.ma
@@ -19,22 +19,22 @@ include "basic_2/reduction/lpx.ma".
 
 (* "RST" PROPER PARALLEL COMPUTATION FOR CLOSURES ***************************)
 
-inductive fpb (h) (g) (G1) (L1) (T1): relation3 genv lenv term ≝
-| fpb_fqu: ∀G2,L2,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2⦄ → fpb h g G1 L1 T1 G2 L2 T2
-| fpb_cpx: ∀T2. ⦃G1, L1⦄ ⊢ T1 ➡[h, g] T2 → (T1 = T2 → ⊥) → fpb h g G1 L1 T1 G1 L1 T2
-| fpb_lpx: ∀L2. ⦃G1, L1⦄ ⊢ ➡[h, g] L2 → (L1 ≡[T1, 0] L2 → ⊥) → fpb h g G1 L1 T1 G1 L2 T1
+inductive fpb (h) (o) (G1) (L1) (T1): relation3 genv lenv term ≝
+| fpb_fqu: ∀G2,L2,T2. ⦃G1, L1, T1⦄ ⊐ ⦃G2, L2, T2⦄ → fpb h o G1 L1 T1 G2 L2 T2
+| fpb_cpx: ∀T2. ⦃G1, L1⦄ ⊢ T1 ➡[h, o] T2 → (T1 = T2 → ⊥) → fpb h o G1 L1 T1 G1 L1 T2
+| fpb_lpx: ∀L2. ⦃G1, L1⦄ ⊢ ➡[h, o] L2 → (L1 ≡[T1, 0] L2 → ⊥) → fpb h o G1 L1 T1 G1 L2 T1
 .
 
 interpretation
    "'rst' proper parallel reduction (closure)"
-   'BTPRedProper h g G1 L1 T1 G2 L2 T2 = (fpb h g G1 L1 T1 G2 L2 T2).
+   'BTPRedProper h o G1 L1 T1 G2 L2 T2 = (fpb h o G1 L1 T1 G2 L2 T2).
 
 (* Basic properties *********************************************************)
 
-lemma cpr_fpb: ∀h,g,G,L,T1,T2. ⦃G, L⦄ ⊢ T1 ➡ T2 → (T1 = T2 → ⊥) →
-               ⦃G, L, T1⦄ ≻[h, g] ⦃G, L, T2⦄.
+lemma cpr_fpb: ∀h,o,G,L,T1,T2. ⦃G, L⦄ ⊢ T1 ➡ T2 → (T1 = T2 → ⊥) →
+               ⦃G, L, T1⦄ ≻[h, o] ⦃G, L, T2⦄.
 /3 width=1 by fpb_cpx, cpr_cpx/ qed.
 
-lemma lpr_fpb: ∀h,g,G,L1,L2,T. ⦃G, L1⦄ ⊢ ➡ L2 → (L1 ≡[T, 0] L2 → ⊥) →
-               ⦃G, L1, T⦄ ≻[h, g] ⦃G, L2, T⦄.
+lemma lpr_fpb: ∀h,o,G,L1,L2,T. ⦃G, L1⦄ ⊢ ➡ L2 → (L1 ≡[T, 0] L2 → ⊥) →
+               ⦃G, L1, T⦄ ≻[h, o] ⦃G, L2, T⦄.
 /3 width=1 by fpb_lpx, lpr_lpx/ qed.