diff options
Diffstat (limited to 'theories/Relations')
| -rw-r--r-- | theories/Relations/Operators_Properties.v | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/theories/Relations/Operators_Properties.v b/theories/Relations/Operators_Properties.v index e599669f8..c2cd9628b 100644 --- a/theories/Relations/Operators_Properties.v +++ b/theories/Relations/Operators_Properties.v @@ -403,6 +403,13 @@ Section Properties. End Equivalences. + Lemma clos_trans_transp_permute : forall x y, + transp _ (clos_trans R) x y <-> clos_trans (transp _ R) x y. + Proof. + split; induction 1; + (apply t_step; assumption) || eapply t_trans; eassumption. + Qed. + End Properties. (* begin hide *) |