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Proof step 7 from proof rtc+-unfold (previous step)

p(a, c), rtc(n0, c, b) ⊦ ∃ c. p(a, c) ∧ p*(c, b)

User applied rule exists right

And obtained the following new goals

Proof step 8:
p(a, c), rtc(n0, c, b) ⊦ p(a, c) ∧ p*(c, b), ∃ c. p(a, c) ∧ p*(c, b)

Rule argument

pos: right 1 terms: c abort: F discard: F computed: T

Additional information

Used terms: c