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Commit e1e5349a authored by Ralf Jung's avatar Ralf Jung
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generalize ndisj_subseteq_difference to work for all masks

parent 6c1d1ebf
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    theories/namespaces.v
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    ......@@ -73,7 +73,8 @@ Section namespace.
    Lemma ndot_preserve_disjoint_r N E x : E ## ↑N → E ## ↑N.@x.
    Proof. intros. by apply symmetry, ndot_preserve_disjoint_l. Qed.
    Lemma ndisj_subseteq_difference N E F : E ## ↑N → E ⊆ F → E ⊆ F ∖ ↑N.
    Lemma namespace_subseteq_difference E1 E2 E3 :
    E1 ## E3 → E1 ⊆ E2 → E1 ⊆ E2 ∖ E3.
    Proof. set_solver. Qed.
    Lemma namespace_subseteq_difference_l E1 E2 E3 : E1 ⊆ E3 → E1 ∖ E2 ⊆ E3.
    ......@@ -89,7 +90,7 @@ of the forms:
    - [↑N1 ⊆ E ∖ ↑N2 ∖ .. ∖ ↑Nn]
    - [E1 ∖ ↑N1 ⊆ E2 ∖ ↑N2 ∖ .. ∖ ↑Nn] *)
    Create HintDb ndisj.
    Hint Resolve ndisj_subseteq_difference : ndisj.
    Hint Resolve namespace_subseteq_difference : ndisj.
    Hint Extern 0 (_ ## _) => apply ndot_ne_disjoint; congruence : ndisj.
    Hint Resolve ndot_preserve_disjoint_l ndot_preserve_disjoint_r : ndisj.
    Hint Resolve nclose_subseteq' ndisj_difference_l : ndisj.
    ......
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