Let p, q, and r be propositional symbols that represent state variables of a transition system (S, I, R), where S, I, and R denote the state space, initial states, and transition relation, respectively, and are defined as follows:
S = true, b ∨ d = I 5 - ∨ d ∨ b - ∨ d) ∧ (b ∨ d ∨ b ∨ d) ∧ (b - ∨ d ∨ b ∨ d -) ∧ (b ∨ d - ∨ b ∨ d) = Y
Decide whether this transition system satisfies the following temporal logic properties. In the case of property not being satisfied provide a counter-example. Show the details of your reasoning to get full credit.
(a) FGp
(b) AF(AGp)
(c) pU-q