28 lines
698 B
Text
28 lines
698 B
Text
(forall (n) (range-to n) (reverse (range-to n nil)))
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(forall (xs) (range-to 0 xs) xs)
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(forall (n xs) (range-to (s n) xs) (cons (s n) (range-to n xs)))
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(forall (a as bs) (++ (cons a as) bs) (cons a (++ as bs)))
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(forall (bs) (++ nil bs) bs)
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(forall (a) (singleton a) (cons a nil))
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(def (reverse nil) nil)
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(forall (a as) (reverse (cons a as)) (++ (reverse as) (singleton a)))
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(forall (n) (+ n 0) n)
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(forall (a b) (+ a (s b)) (s (+ a b)))
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(forall (n) (* n 0) 0)
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(forall (a b) (* a (s b)) (+ a (* a b)))
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(def 1 (s 0))
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(def 2 (s 1))
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(def 3 (s 2))
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(def 4 (s 3))
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(def 5 (s 4))
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(def 6 (s 5))
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(def 7 (s 6))
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(def 8 (s 7))
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(def 9 (s 8))
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(def 10 (s 9))
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(def 20 (+ 10 10))
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; i need to do comments
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(range-to 5)
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