p(c, b), p(a, c0), p(c0, c1), rtc(m0, c0, c), rtc(m0, c1, b), ∀ c, b, a. p(c, b) ∧ rtc(m0, a, c) → (∃ c. p(a, c) ∧ rtc(m0, c, b))
⊦ ∃ c1. p(a, c1) ∧ (∃ c. p(c1, c) ∧ rtc(m0, c, b)), ∃ c. p(c0, c) ∧ rtc(m0, c, b)
Heuristic quantifier closing applied rule exists right