| j0 | i / j ∧ prime(j0) ∧ j0 < i / j ∧ (∀ j1. j0 < j1 ∧ j1 < i / j ∧ prime(j1) → ¬ j1 | i / j), 2 ≤ i / j, j < j0, 2 ≤ i, 0 ≤ i, 0 < i, prime(j), j | i, j < i, prime(j0), j0 | i / j, j0 < i / j, 0 ≤ i / j, 0 < i / j, ∀ j0. j < j0 ∧ j0 < i ∧ prime(j0) → ¬ j0 | i, ∀ j1. j0 < j1 ∧ j1 < i / j ∧ prime(j1) → ¬ j1 | i / j ⊦ prime(i), prime(i / j) |
j < i / j, 0 < i / j, 0 ≤ i / j, j0 < i / j, j0 | i / j, prime(j0), j < i, j | i, prime(j), 0 < i, 0 ≤ i, 2 ≤ i, j < j0, 2 ≤ i / j, j + 1 < i / j, ∀ j1. j0 < j1 ∧ j1 < i / j ∧ prime(j1) → ¬ j1 | i / j, ∀ j0. j < j0 ∧ j0 < i ∧ prime(j0) → ¬ j0 | i ⊦ prime(i / j), prime(i)
Used simplifier rules: succ-01: ⊦ i +1 = i + 1; from specification int-basic2%trans: ⊦ i < j ∧ j < j0 → i < j0; (forward) from specification int-basic1%lf-01: ⊦ i < j ∧ j < i0 → i +1 < i0; (forward) from specification int-basic1