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Theorem dist

⊦ i * Σ(n, nf) = Σ(n, λ k. i * nf(k))

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 3
Used lemmas: sum-rec, sum-base,
Used spec theorems:
- Used simplifier rules: