12 lines
327 B
Text
12 lines
327 B
Text
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--| Multiply all the numbers in a `List`
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let product
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: List Natural → Natural
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= λ(xs : List Natural) →
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List/fold Natural xs Natural (λ(l : Natural) → λ(r : Natural) → l * r) 1
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let example0 = assert : product [ 2, 3, 5 ] ≡ 30
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let example1 = assert : product ([] : List Natural) ≡ 1
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in product
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