1 files changed, 16 insertions, 0 deletions
diff --git a/src/Util/SideConditions/CorePackages.v b/src/Util/SideConditions/CorePackages.v
new file mode 100644
index 000000000..19612df0a
--- /dev/null
+++ b/src/Util/SideConditions/CorePackages.v
@@ -0,0 +1,16 @@
+Import EqNotations.
+
+Record evar_package {T} (v : T) :=
+  { val : T;
+    evar_package_pf : val = v }.
+Arguments val {T v} _.
+Arguments evar_package_pf {T v} _.
+Record evard_package {s d} (v : s) :=
+  { vald : d;
+    evard_package_pfT : s = d;
+    evard_package_pf : vald = rew evard_package_pfT in v }.
+Arguments vald {s d v} _.
+Arguments evard_package_pfT {s d v} _.
+Arguments evard_package_pf {s d v} _.
+
+Ltac autosolve else_tac := else_tac ().