wip
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4 changed files with 12 additions and 8 deletions
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@ -7,4 +7,4 @@ open import Cubical.Foundations.Prelude
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example : {A : Type} → {B : A → Type}
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→ ((x : A) → isProp (B x))
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→ isProp ((x : A) → B x)
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example B-x-prop x y = λ i z → B-x-prop {! !} {! !} {! !} i
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example B-x-prop fx fy = λ i z → B-x-prop z (B-x-prop z (fx z) (fy z) i) (B-x-prop z (fx z) (fy z) i) i
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@ -2,4 +2,4 @@
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module CubicalHott.Lemma3-11-3 where
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open import Cubical.Foundations.Prelude
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open import Cubical.Foundations.Prelude
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@ -3,13 +3,17 @@
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module CubicalHott.Lemma3-11-4 where
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open import Cubical.Foundations.Prelude
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open import CubicalHott.Example3-6-2 renaming (example to example3-6-2)
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lemma : {A : Type} → isProp (isContr A)
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lemma {A} A-contr-x @ (x , px) (y , py) i =
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let A-is-set = isProp→isSet (isContr→isProp A-contr-x) in
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-- px y i ≡ z
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-- ———— Boundary (wanted) —————————————————————————————————————
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-- i = i0 ⊢ px z
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-- i = i1 ⊢ py z
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px y i , λ z j → {! !}
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px y i , goal i where
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helper1 : isProp ((z : A) → px y i ≡ z)
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helper1 = example3-6-2 (λ x → isContr→isProp {! !})
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goal : PathP (λ i → (z : A) → px y i ≡ z) px py
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goal i z = {! helper1 !}
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-- λ y' j → isProp→isSet (isContr→isProp A-contr-x) (px y i) y' {! !} {! !} j i
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@ -9,6 +9,6 @@ open import Cubical.Data.Nat
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z = isContr
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theorem : {X : Type} → (n : ℕ) → isProp (isOfHLevel n X)
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theorem zero x y i = snd x (fst y) i , {! !}
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theorem zero = {! !}
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theorem (suc zero) x y = {! !}
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theorem (suc (suc n)) x y = {! !}
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