daa4fd9955
This PR reviews the implicitness of arguments across List/Array/Vector, generally trying to make arguments implicit where possible, although sometimes correcting propositional arguments which were incorrectly implicit to explicit.
12 lines
366 B
Text
12 lines
366 B
Text
def myfunUnsafe (x : Array α) (i : Fin x.size) : Array α :=
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sorry
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@[implemented_by myfunUnsafe]
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def myfun (x : Array α) (i : Fin x.size) : Array α :=
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let next := 2*i.1 + 1
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if h : next < x.size then
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have : x.size - next < x.size - i.1 := sorry
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myfun (x.swap i next) ⟨next, (x.size_swap).symm ▸ h⟩
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else
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x
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termination_by x.size - i.1
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