25 lines
536 B
Text
25 lines
536 B
Text
#check list.map
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variable l : list nat
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#check l^.1 -- Error l is not a structure
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#check (1, 2)^.5 -- Error insufficient fields
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example (l : list nat) : list nat :=
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l^.forr (λ x, x + 1) -- Error there is no list.forr
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example (A : Type) (a : A) : A :=
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a^.symm -- Error type of 'a' is not a constant application
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example (l : list nat) : list nat :=
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l^.for (λ x, x + 1)
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example (l : list nat) : list nat :=
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l^.for (λ x, x + 1)
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example (a b : nat) (h : a = b) : b = a :=
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h^.symm
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example (a b : nat) (h : a = b) : b = a :=
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h^.symm
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