Commit faf185c4 authored by Ralf Jung's avatar Ralf Jung
Browse files

make pm_error an Inductive

parent 0e1bdaf4
......@@ -8,7 +8,7 @@ Import bi.
(** Use this as precondition on "failing" instances of typeclasses that have
pure preconditions (such as [ElimModal]), if you want a nice error to be shown
when this instances is picked as part of some proof mode tactic. *)
Definition pm_error (s : string) := False.
Inductive pm_error (s : string) := .
Class FromAssumption {PROP : bi} (p : bool) (P Q : PROP) :=
from_assumption : ?p P Q.
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