H(performed(X),T)/\H(performed(Y),T)/\X!=Y
--->false.

H(start,0)
--->E(performed(a0),Ta0).

H(performed(a0),Ta0)
--->E(performed(a1),Ta1)/\Ta1>Ta0/\EN(performed(a0),Ta0_1)/\Ta0_1>Ta0/\Ta0_1<Ta1.

H(performed(a1),Ta1)
--->E(performed(a2),Ta2)/\Ta2>Ta1/\EN(performed(a1),Ta1_1)/\Ta1_1>Ta1/\Ta1_1<Ta2.

H(performed(a2),Ta2)
--->E(performed(a3),Ta3)/\Ta3>Ta2/\EN(performed(a2),Ta2_1)/\Ta2_1>Ta2/\Ta2_1<Ta3.

H(performed(a3),Ta3)
--->E(performed(a4),Ta4)/\Ta4>Ta3/\EN(performed(a3),Ta3_1)/\Ta3_1>Ta3/\Ta3_1<Ta4.

H(start,0)
--->EN(performed(a4),Ta4).