intros 7;
alias symbol "pi1" (instance 3) = "pair pi1".
alias symbol "pi2" = "pair pi2".
-apply (H (λx:{[l,u]} square.U 〈\fst (\fst x),\fst (\snd x)〉));
+apply (H (λx:{[l,u]} squareB.U 〈\fst (\fst x),\fst (\snd x)〉));
(unfold segment_ordered_uniform_space; simplify);
exists [apply U] split; [assumption;]
intro; cases b; intros; simplify; split; intros; assumption;
qed.
-(* Lemma 3.8 *)
+(* Lemma 3.8 NON DUALIZZATO *)
lemma restrict_uniform_convergence_uparrow:
∀C:ordered_uniform_space.property_sigma C →
∀l,u:C.exhaustive {[l,u]} →
x∈[l,u] ∧ ∀h:x ∈ [l,u].a uniform_converges ≪x,h≫.
intros; cases H2 (Ha Hx); clear H2; cases Hx; split;
[1: split;
- [1: apply (supremum_is_upper_bound C ?? Hx u);
+ [1: apply (supremum_is_upper_bound ? x Hx u);
apply (segment_upperbound ? l);
- |2: apply (le_transitive ? ??? ? (H2 O));
- apply (segment_lowerbound ?l u);]
+ |2: apply (le_transitive l ? x ? (H2 O));
+ apply (segment_lowerbound ? l u a 0);]
|2: intros;
- lapply (uparrow_upperlocated ? a ≪x,h≫) as Ha1;
- [2: apply segment_preserves_uparrow;split; assumption;]
- lapply (segment_preserves_supremum ? l u a ≪?,h≫) as Ha2;
+ lapply (uparrow_upperlocated a ≪x,h≫) as Ha1;
+ [2: apply (segment_preserves_uparrow C l u);split; assumption;]
+ lapply (segment_preserves_supremum l u a ≪?,h≫) as Ha2;
[2:split; assumption]; cases Ha2; clear Ha2;
cases (H1 a a); lapply (H6 H4 Ha1) as HaC;
lapply (segment_cauchy ? l u ? HaC) as Ha;
lapply (sigma_cauchy ? H ? x ? Ha); [left; split; assumption]
apply restric_uniform_convergence; assumption;]
qed.
-
-lemma restrict_uniform_convergence_downarrow:
+
+lemma hint_mah1:
+ ∀C. Type_OF_ordered_uniform_space1 C → hos_carr (os_r C).
+ intros; assumption; qed.
+
+coercion hint_mah1 nocomposites.
+
+lemma hint_mah2:
+ ∀C. sequence (hos_carr (os_l C)) → sequence (hos_carr (os_r C)).
+ intros; assumption; qed.
+
+coercion hint_mah2 nocomposites.
+
+lemma hint_mah3:
+ ∀C. Type_OF_ordered_uniform_space C → hos_carr (os_r C).
+ intros; assumption; qed.
+
+coercion hint_mah3 nocomposites.
+
+lemma hint_mah4:
+ ∀C. sequence (hos_carr (os_r C)) → sequence (hos_carr (os_l C)).
+ intros; assumption; qed.
+
+coercion hint_mah4 nocomposites.
+
+axiom restrict_uniform_convergence_downarrow:
∀C:ordered_uniform_space.property_sigma C →
∀l,u:C.exhaustive {[l,u]} →
- ∀a:sequence {[l,u]}.∀x:C. ⌊n,\fst (a n)⌋ ↓ x →
+ ∀a:sequence {[l,u]}.∀x: C. ⌊n,\fst (a n)⌋ ↓ x →
x∈[l,u] ∧ ∀h:x ∈ [l,u].a uniform_converges ≪x,h≫.
+ (*
intros; cases H2 (Ha Hx); clear H2; cases Hx; split;
[1: split;
- [2: apply (infimum_is_lower_bound C ?? Hx l);
+ [2: apply (infimum_is_lower_bound ? x Hx l);
apply (segment_lowerbound ? l u);
- |1: apply (le_transitive ???? (H2 O));
- apply (segment_upperbound ? l u);]
+ |1: lapply (ge_transitive ? ? x ? (H2 O)); [apply u||assumption]
+ apply (segment_upperbound ? l u a 0);]
|2: intros;
- lapply (downarrow_lowerlocated ? a ≪x,h≫) as Ha1;
- [2: apply segment_preserves_downarrow;split; assumption;]
- lapply (segment_preserves_infimum ?l u a ≪?,h≫) as Ha2;
+ lapply (downarrow_lowerlocated a ≪x,h≫) as Ha1;
+ [2: apply (segment_preserves_downarrow ? l u);split; assumption;]
+ lapply (segment_preserves_infimum l u);
+ [2: apply a; ≪?,h≫) as Ha2;
[2:split; assumption]; cases Ha2; clear Ha2;
cases (H1 a a); lapply (H7 H4 Ha1) as HaC;
lapply (segment_cauchy ? l u ? HaC) as Ha;
lapply (sigma_cauchy ? H ? x ? Ha); [right; split; assumption]
apply restric_uniform_convergence; assumption;]
-qed.
\ No newline at end of file
+qed.
+*)
\ No newline at end of file