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

H(performed(X),TX)/\H(performed(Y),TY)/\TY==TX+1
--->EN(performed(Z),TZ)/\TZ>TX/\TZ<TY.

H(start,0)
--->E(performed(a0),Ta0)
/\E(performed(a0),Ta0_1)/\Ta0_1>Ta0.

H(performed(a0),Ta0)
--->E(performed(a1),Ta1)/\Ta1==Ta0+1.

H(performed(a1),Ta1)
--->E(performed(a2),Ta2)/\Ta2==Ta1+1.

H(performed(a2),Ta2)
--->E(performed(a3),Ta3)/\Ta3==Ta2+1.

H(performed(a3),Ta3)
--->E(performed(a4),Ta4)/\Ta4==Ta3+1.

H(performed(a4),Ta4)
--->E(performed(a5),Ta5)/\Ta5==Ta4+1.

H(performed(a5),Ta5)
--->E(performed(a6),Ta6)/\Ta6==Ta5+1.

H(performed(a6),Ta6)
--->EN(performed(a6),Ta6_1)/\Ta6_1>Ta6.