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Theorem coef-rec

⊦ j ≤ i ∧ 0 < j → binom_coef(i, j) = (binom_coef(i - 1, j - 1) * i) / j

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: coef-zero, coef-neg, coef-mult-rec,
Used spec theorems:
- Used simplifier rules: