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Proof step 1 from proof middle-coef-divides-not (conclusion)

⊦ 2 * i < j ∧ prime(j) ∧ 0 < i → ¬ j | binom_coef(2 * i, i)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
j | binom_coef(2 * i, i), 2 * i < j, prime(j), 0 < i ⊦

Rule argument

Additional information

Used simplifier rules: forward-le-05: ⊦ i < j ∧ 0 ≤ i → 0 < j; (forward) from specification int-abs