3b38f71f11
We had to change subtype to use Sort since the axiom strong_indefinite_description uses it. see #1341
13 lines
384 B
Text
13 lines
384 B
Text
import system.io
|
|
open list
|
|
|
|
/- B and unit must be in the same universe
|
|
So, we must put B at Type₁ or use poly_unit
|
|
since unit is at Type₁
|
|
-/
|
|
|
|
definition foreach {A : Type} {B : Type} : list A → (A → io B) → io punit
|
|
| [] f := return punit.star
|
|
| (x::xs) f := do f x, foreach xs f
|
|
|
|
vm_eval foreach [1,2,3,4,5] (λ i, do put_str "value: ", put_nat i, put_str "\n")
|