MiniAgda by Andreas Abel and Karl Mehltretter --- opening "drop.ma" --- --- scope checking --- --- type checking --- type SNat : + Size -> Set term SNat.zero : .[s!ze : Size] -> .[i < s!ze] -> SNat s!ze term SNat.zero : .[i : Size] -> < SNat.zero i : SNat $i > term SNat.succ : .[s!ze : Size] -> .[i < s!ze] -> ^ SNat i -> SNat s!ze term SNat.succ : .[i : Size] -> ^(y1 : SNat i) -> < SNat.succ i y1 : SNat $i > type Stream : - Size -> Set term Stream.cons : .[i : Size] -> ^(y1 : SNat #) -> ^(y2 : Stream i) -> < Stream.cons i y1 y2 : Stream $i > term drop : .[i : Size] -> SNat i -> Stream # -> Stream # { drop [.$i] (SNat.zero [i]) xs = xs ; drop [.$i] (SNat.succ [i] y) (Stream.cons [.#] x xs) = drop [i] y xs } --- evaluating --- --- closing "drop.ma" ---