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Step * of Lemma better-fibs-equal-map

better-fibs() = stream-map(λn.fib(n);nats()) ∈ stream(ℕ)
BY
{ (BLemma `stream-extensionality` THEN Auto) }

1
1. n : ℕ@i
⊢ s-nth(n;better-fibs()) = s-nth(n;stream-map(λn.fib(n);nats())) ∈ ℕ

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Latex:

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Latex:
better-fibs()  =  stream-map(\mlambda{}n.fib(n);nats())


By

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Latex:
(BLemma  `stream-extensionality`  THEN  Auto)

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