27 lines
798 B
Text
27 lines
798 B
Text
/-
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Copyright (c) 2016 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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-/
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prelude
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import init.meta.mk_dec_eq_instance init.subtype init.meta.occurrences init.sum
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open tactic subtype
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universe variables u v
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instance {α : Type u} {p : α → Prop} [decidable_eq α] : decidable_eq {x : α // p x} :=
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by mk_dec_eq_instance
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instance {α : Type u} [decidable_eq α] : decidable_eq (list α) :=
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by mk_dec_eq_instance
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instance : decidable_eq string :=
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list.decidable_eq
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instance : decidable_eq occurrences :=
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by mk_dec_eq_instance
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instance : decidable_eq unit :=
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by mk_dec_eq_instance
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instance {α : Type u} {β : Type v} [decidable_eq α] [decidable_eq β] : decidable_eq (α ⊕ β) :=
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by mk_dec_eq_instance
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