Step * 1 of Lemma path-point-0


1. CubicalSet{j}
2. {X ⊢ _}
3. {X ⊢ _:A}
4. {X ⊢ _:A}
5. pth {X ⊢ _:(Path_A b)}
⊢ (pth)1(X) 0(𝕀a ∈ {X ⊢ _:A}
BY
(InstLemma `cubical-path-app-0` [⌜X⌝;⌜A⌝;⌜a⌝;⌜b⌝;⌜(pth)1(X)⌝]⋅ THEN Auto) }


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)1(X)  @  0(\mBbbI{})  =  a


By


Latex:
(InstLemma  `cubical-path-app-0`  [\mkleeneopen{}X\mkleeneclose{};\mkleeneopen{}A\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}(pth)1(X)\mkleeneclose{}]\mcdot{}  THEN  Auto)




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