Merge remote-tracking branch 'origin/main' into mpz_sgn
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@ -89,9 +89,9 @@ Proof.
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reflexivity.
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Qed.
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Lemma list_store_Z_compact_reverse_injection: forall l1 l2 n1 n2,
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list_store_Z_compact l1 n1 ->
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list_store_Z_compact l2 n2 ->
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Lemma list_store_Z_reverse_injection: forall l1 l2 n1 n2,
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list_store_Z l1 n1 ->
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list_store_Z l2 n2 ->
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n1 = n2 -> l1 = l2.
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Proof. Admitted.
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@ -282,6 +282,41 @@ Proof.
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pose proof (Zlength_nonneg l1); lia.
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Qed.
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Lemma list_store_Z_list_append: forall (l: list Z) (i: Z) (val_prefix: Z) (val_full: Z),
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0 <= i < Zlength l ->
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list_store_Z l val_full ->
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list_store_Z (sublist 0 i l) val_prefix ->
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list_store_Z (sublist 0 (i+1) l) (val_prefix + Znth i l 0 * UINT_MOD ^ i).
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Proof.
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intros.
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assert ((sublist 0 (i + 1) l) = ((sublist 0 i l) ++ ((Znth i l 0) :: nil)))%list. {
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pose proof (sublist_split 0 (i+1) i l).
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pose proof (sublist_single i l 0).
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rewrite <-H3; try rewrite <- Zlength_correct.
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apply H2; try rewrite <- Zlength_correct.
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lia. lia. lia.
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}
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rewrite H2.
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pose proof (list_store_Z_concat (sublist 0 i l) (Znth i l 0 :: nil) (val_prefix) (Znth i l 0)).
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assert (Zlength (sublist 0 i l) = i). {
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rewrite Zlength_sublist0.
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lia.
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lia.
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}
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rewrite H4 in H3.
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apply H3.
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tauto.
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unfold list_store_Z.
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simpl.
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split.
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reflexivity.
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split; try tauto.
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apply list_within_bound_Znth.
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lia.
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unfold list_store_Z in H0.
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tauto.
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Qed.
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Lemma list_store_Z_split: forall (l1 l2: list Z) (n: Z),
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list_store_Z (l1 ++ l2) n ->
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list_store_Z l1 (n mod UINT_MOD ^ (Zlength l1)) /\
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