Step
*
2
of Lemma
term-to-path-eta
1. X : CubicalSet{j}
2. A : {X ⊢ _}
3. a : {X ⊢ _:A}
4. b : {X ⊢ _:A}
5. pth : {X ⊢ _:(Path_A a b)}
⊢ pth = X ⊢ <>((pth)p @ q) ∈ {X ⊢ _:Path(A)}
BY
{ (Symmetry THEN All (RepUR ``pathtype term-to-path cubical-path-app cubicalpath-app``)) }
1
1. X : CubicalSet{j}
2. A : {X ⊢ _}
3. a : {X ⊢ _:A}
4. b : {X ⊢ _:A}
5. pth : {X ⊢ _:(Path_A a b)}
⊢ (λapp((pth)p; q)) = pth ∈ {X ⊢ _:(𝕀 ⟶ A)}
Latex:
Latex:
1. X : CubicalSet\{j\}
2. A : \{X \mvdash{} \_\}
3. a : \{X \mvdash{} \_:A\}
4. b : \{X \mvdash{} \_:A\}
5. pth : \{X \mvdash{} \_:(Path\_A a b)\}
\mvdash{} pth = X \mvdash{} <>((pth)p @ q)
By
Latex:
(Symmetry THEN All (RepUR ``pathtype term-to-path cubical-path-app cubicalpath-app``))
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