(* Basic_2A1: uses: lsx_ind *)
lemma rdsx_ind (h) (G) (T):
∀Q:predicate lenv.
- (∀L1. G ⊢ ⬈*[h, T] 𝐒⦃L1⦄ →
- (∀L2. ⦃G, L1⦄ ⊢ ⬈[h] L2 → (L1 ≛[T] L2 → ⊥) → Q L2) →
+ (∀L1. G ⊢ ⬈*[h,T] 𝐒⦃L1⦄ →
+ (∀L2. ⦃G,L1⦄ ⊢ ⬈[h] L2 → (L1 ≛[T] L2 → ⊥) → Q L2) →
Q L1
) →
- ∀L. G ⊢ ⬈*[h, T] 𝐒⦃L⦄ → Q L.
+ ∀L. G ⊢ ⬈*[h,T] 𝐒⦃L⦄ → Q L.
#h #G #T #Q #H0 #L1 #H elim H -L1
/5 width=1 by SN_intro/
qed-.
(* Basic_2A1: uses: lsx_intro *)
lemma rdsx_intro (h) (G) (T):
∀L1.
- (∀L2. ⦃G, L1⦄ ⊢ ⬈[h] L2 → (L1 ≛[T] L2 → ⊥) → G ⊢ ⬈*[h, T] 𝐒⦃L2⦄) →
- G ⊢ ⬈*[h, T] 𝐒⦃L1⦄.
+ (∀L2. ⦃G,L1⦄ ⊢ ⬈[h] L2 → (L1 ≛[T] L2 → ⊥) → G ⊢ ⬈*[h,T] 𝐒⦃L2⦄) →
+ G ⊢ ⬈*[h,T] 𝐒⦃L1⦄.
/5 width=1 by SN_intro/ qed.
(* Basic forward lemmas *****************************************************)
(* Basic_2A1: uses: lsx_fwd_pair_sn lsx_fwd_bind_sn lsx_fwd_flat_sn *)
lemma rdsx_fwd_pair_sn (h) (G):
- ∀I,L,V,T. G ⊢ ⬈*[h, ②{I}V.T] 𝐒⦃L⦄ →
- G ⊢ ⬈*[h, V] 𝐒⦃L⦄.
+ ∀I,L,V,T. G ⊢ ⬈*[h,②{I}V.T] 𝐒⦃L⦄ →
+ G ⊢ ⬈*[h,V] 𝐒⦃L⦄.
#h #G #I #L #V #T #H
@(rdsx_ind … H) -L #L1 #_ #IHL1
@rdsx_intro #L2 #HL12 #HnL12
(* Basic_2A1: uses: lsx_fwd_flat_dx *)
lemma rdsx_fwd_flat_dx (h) (G):
- ∀I,L,V,T. G ⊢ ⬈*[h, ⓕ{I}V.T] 𝐒⦃L⦄ →
- G ⊢ ⬈*[h, T] 𝐒⦃L⦄.
+ ∀I,L,V,T. G ⊢ ⬈*[h,ⓕ{I}V.T] 𝐒⦃L⦄ →
+ G ⊢ ⬈*[h,T] 𝐒⦃L⦄.
#h #G #I #L #V #T #H
@(rdsx_ind … H) -L #L1 #_ #IHL1
@rdsx_intro #L2 #HL12 #HnL12
qed-.
fact rdsx_fwd_pair_aux (h) (G):
- ∀L. G ⊢ ⬈*[h, #0] 𝐒⦃L⦄ →
- ∀I,K,V. L = K.ⓑ{I}V → G ⊢ ⬈*[h, V] 𝐒⦃K⦄.
+ ∀L. G ⊢ ⬈*[h,#0] 𝐒⦃L⦄ →
+ ∀I,K,V. L = K.ⓑ{I}V → G ⊢ ⬈*[h,V] 𝐒⦃K⦄.
#h #G #L #H
@(rdsx_ind … H) -L #L1 #_ #IH #I #K1 #V #H destruct
/5 width=5 by lpx_pair, rdsx_intro, rdeq_fwd_zero_pair/
qed-.
lemma rdsx_fwd_pair (h) (G):
- ∀I,K,V. G ⊢ ⬈*[h, #0] 𝐒⦃K.ⓑ{I}V⦄ → G ⊢ ⬈*[h, V] 𝐒⦃K⦄.
+ ∀I,K,V. G ⊢ ⬈*[h,#0] 𝐒⦃K.ⓑ{I}V⦄ → G ⊢ ⬈*[h,V] 𝐒⦃K⦄.
/2 width=4 by rdsx_fwd_pair_aux/ qed-.
(* Basic inversion lemmas ***************************************************)
(* Basic_2A1: uses: lsx_inv_flat *)
lemma rdsx_inv_flat (h) (G):
- ∀I,L,V,T. G ⊢ ⬈*[h, ⓕ{I}V.T] 𝐒⦃L⦄ →
- ∧∧ G ⊢ ⬈*[h, V] 𝐒⦃L⦄ & G ⊢ ⬈*[h, T] 𝐒⦃L⦄.
+ ∀I,L,V,T. G ⊢ ⬈*[h,ⓕ{I}V.T] 𝐒⦃L⦄ →
+ ∧∧ G ⊢ ⬈*[h,V] 𝐒⦃L⦄ & G ⊢ ⬈*[h,T] 𝐒⦃L⦄.
/3 width=3 by rdsx_fwd_pair_sn, rdsx_fwd_flat_dx, conj/ qed-.
(* Basic_2A1: removed theorems 9: