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chore(init/category/lift): document monad_run

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Sebastian Ullrich 2018-03-01 17:57:27 +01:00 • committed by Leonardo de Moura
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commit 10982cd94d
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library/init/category/lift.lean
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@ -53,7 +53,9 @@ instance monad_functor_t_refl (m m') : monad_functor_t m m' m m' :=
@[simp] lemma monad_map_refl {m m' : Type u → Type v} (f : ∀ {α}, m α → m' α) {α} : (monad_map @f : m α → m' α) = f := rfl
/-- Run a monad stack to completion. -/
/-- Run a monad stack to completion.
`run` should be the composition of the transformers' individual `run` functions.
`unrun` should be its inverse. -/
class monad_run (out : out_param $ Type u → Type v) (m : Type u → Type v) :=
(run {} {α : Type u} : m α → out α)
(unrun {} {α : Type u} : out α → m α)