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-rw-r--r--src/Util/Sigma.v8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/Util/Sigma.v b/src/Util/Sigma.v
index 9259e1a1d..57c82df68 100644
--- a/src/Util/Sigma.v
+++ b/src/Util/Sigma.v
@@ -221,12 +221,14 @@ Ltac simpl_proj_exist_in H :=
| context G[projT2 (existT _ ?x ?p)]
=> let G' := context G[p] in change G' in H
end.
-Ltac induction_sigma_in_using H rect :=
- let H0 := fresh H in
- let H1 := fresh H in
+Ltac induction_sigma_in_as_using H H0 H1 rect :=
induction H as [H0 H1] using (rect _ _ _ _);
simpl_proj_exist_in H0;
simpl_proj_exist_in H1.
+Ltac induction_sigma_in_using H rect :=
+ let H0 := fresh H in
+ let H1 := fresh H in
+ induction_sigma_in_as_using H H0 H1 rect.
Ltac inversion_sigma_step :=
match goal with
| [ H : _ = exist _ _ _ |- _ ]