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diff --git a/matita/tests/TPTP/Veloci/BOO001-1.p.ma b/matita/tests/TPTP/Veloci/BOO001-1.p.ma
new file mode 100644
index 000000000..3cb2beeda
--- /dev/null
+++ b/matita/tests/TPTP/Veloci/BOO001-1.p.ma
@@ -0,0 +1,66 @@
+
+include "logic/equality.ma".
+(* Inclusion of: BOO001-1.p *)
+(* -------------------------------------------------------------------------- *)
+(*  File     : BOO001-1 : TPTP v3.1.1. Released v1.0.0. *)
+(*  Domain   : Boolean Algebra (Ternary) *)
+(*  Problem  : In B3 algebra, inverse is an involution *)
+(*  Version  : [OTTER] (equality) axioms. *)
+(*  English  :  *)
+(*  Refs     :  *)
+(*  Source   : [OTTER] *)
+(*  Names    : tba_gg.in [OTTER] *)
+(*  Status   : Unsatisfiable *)
+(*  Rating   : 0.00 v2.2.1, 0.11 v2.2.0, 0.14 v2.1.0, 0.25 v2.0.0 *)
+(*  Syntax   : Number of clauses     :    6 (   0 non-Horn;   6 unit;   1 RR) *)
+(*             Number of atoms       :    6 (   6 equality) *)
+(*             Maximal clause size   :    1 (   1 average) *)
+(*             Number of predicates  :    1 (   0 propositional; 2-2 arity) *)
+(*             Number of functors    :    3 (   1 constant; 0-3 arity) *)
+(*             Number of variables   :   13 (   2 singleton) *)
+(*             Maximal term depth    :    3 (   2 average) *)
+(*  Comments :  *)
+(* -------------------------------------------------------------------------- *)
+(* ----Include ternary Boolean algebra axioms  *)
+(* Inclusion of: Axioms/BOO001-0.ax *)
+(* -------------------------------------------------------------------------- *)
+(*  File     : BOO001-0 : TPTP v3.1.1. Released v1.0.0. *)
+(*  Domain   : Algebra (Ternary Boolean) *)
+(*  Axioms   : Ternary Boolean algebra (equality) axioms *)
+(*  Version  : [OTTER] (equality) axioms. *)
+(*  English  :  *)
+(*  Refs     : [Wos88] Wos (1988), Automated Reasoning - 33 Basic Research Pr *)
+(*           : [Win82] Winker (1982), Generation and Verification of Finite M *)
+(*  Source   : [OTTER] *)
+(*  Names    :  *)
+(*  Status   :  *)
+(*  Syntax   : Number of clauses    :    5 (   0 non-Horn;   5 unit;   0 RR) *)
+(*             Number of literals   :    5 (   5 equality) *)
+(*             Maximal clause size  :    1 (   1 average) *)
+(*             Number of predicates :    1 (   0 propositional; 2-2 arity) *)
+(*             Number of functors   :    2 (   0 constant; 1-3 arity) *)
+(*             Number of variables  :   13 (   2 singleton) *)
+(*             Maximal term depth   :    3 (   2 average) *)
+(*  Comments : These axioms appear in [Win82], in which ternary_multiply_1 is *)
+(*             shown to be independant. *)
+(*           : These axioms are also used in [Wos88], p.222. *)
+(* -------------------------------------------------------------------------- *)
+(* -------------------------------------------------------------------------- *)
+(* -------------------------------------------------------------------------- *)
+theorem prove_inverse_is_self_cancelling:
+ \forall Univ:Set.
+\forall a:Univ.
+\forall inverse:\forall _:Univ.Univ.
+\forall multiply:\forall _:Univ.\forall _:Univ.\forall _:Univ.Univ.
+\forall H0:\forall X:Univ.\forall Y:Univ.eq Univ (multiply X Y (inverse Y)) X.
+\forall H1:\forall X:Univ.\forall Y:Univ.eq Univ (multiply (inverse Y) Y X) X.
+\forall H2:\forall X:Univ.\forall Y:Univ.eq Univ (multiply X X Y) X.
+\forall H3:\forall X:Univ.\forall Y:Univ.eq Univ (multiply Y X X) X.
+\forall H4:\forall V:Univ.\forall W:Univ.\forall X:Univ.\forall Y:Univ.\forall Z:Univ.eq Univ (multiply (multiply V W X) Y (multiply V W Z)) (multiply V W (multiply X Y Z)).eq Univ (inverse (inverse a)) a
+.
+intros.
+autobatch paramodulation timeout=100;
+try assumption.
+print proofterm.
+qed.
+(* -------------------------------------------------------------------------- *)