Define weak extensionality of a relation #596
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How do you feel about this definition, which is better-behaved when the carrier is not a set: |
ecavallo
reviewed
Oct 22, 2021
| isWeaklyExtensional : Type _ | ||
| isWeaklyExtensional = ∀ {x y} → (∀ {z} → (z ≺ x → z ≺ y) × (z ≺ y → z ≺ x)) → x ≡ y | ||
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| isWeaklyExtensional-isProp : isSet A → isProp isWeaklyExtensional |
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Please rename to isPropIsWeaklyExtensional.
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