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Proof step 3 from proof coef-eq-zero (previous step)

¬ ¬(0 ≤ j ∧ j ≤ i) ⊦ binom_coef(i, j) = 0 ↔ j < 0 ∨ i < j

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
binom_coef(i, j) = 0, j ≤ i, 0 ≤ j, 0 ≤ i ⊦

Rule argument

Additional information

Used simplifier rules: forward-le-01: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward) from specification int-abs%lenls: ⊦ i ≤ j → ¬ j < i; from specification int-abs