Commit 81d719c9 authored by Robbert Krebbers's avatar Robbert Krebbers

Mononicity of ∖.

parent 5c7064e1
......@@ -346,7 +346,6 @@ Section simple_collection.
Proof. set_solver. Qed.
Lemma elem_of_union_r x X Y : x Y x X Y.
Proof. set_solver. Qed.
Lemma union_preserving_l X Y1 Y2 : Y1 Y2 X Y1 X Y2.
Proof. set_solver. Qed.
Lemma union_preserving_r X1 X2 Y : X1 X2 X1 Y X2 Y.
......@@ -613,6 +612,14 @@ Section collection.
Lemma difference_disjoint X Y : X Y X Y X.
Proof. set_solver. Qed.
Lemma difference_preserving X1 X2 Y1 Y2 :
X1 X2 Y2 Y1 X1 Y1 X2 Y2.
Proof. set_solver. Qed.
Lemma difference_preserving_l X Y1 Y2 : Y2 Y1 X Y1 X Y2.
Proof. set_solver. Qed.
Lemma difference_preserving_r X1 X2 Y : X1 X2 X1 Y X2 Y.
Proof. set_solver. Qed.
(** Disjointness *)
Lemma disjoint_intersection X Y : X Y X Y .
Proof. set_solver. Qed.
......
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