6dbcf86fd4
With the new "noncomputable" feature we can use Hilbert's choice without being concerned it may accidentaly "leak" inside definitions we don't want to use it.
3 lines
249 B
Text
3 lines
249 B
Text
quot.sound : ∀ {A : Type} [s : setoid A] {a b : A}, setoid.r a b → quot.mk a = quot.mk b
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propext : ∀ {a b : Prop}, (a ↔ b) → a = b
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strong_indefinite_description : Π {A : Type} (P : A → Prop), nonempty A → { (x : A)| Exists P → P x}
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