8 lines
312 B
Text
8 lines
312 B
Text
no axioms
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quot.sound : ∀ {A : Type u} [s : setoid A] {a b : A}, a ≈ b → ⟦a⟧ = ⟦b⟧
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classical.strong_indefinite_description : Π {A : Type u} (p : A → Prop), nonempty A → {x // (∃ (y : A), p y) → p x}
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propext : ∀ {a b : Prop}, (a ↔ b) → a = b
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------
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theorem foo3 : 0 = 0 :=
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foo2
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