Step
*
1
of Lemma
poset-id-functor
1. I : Cname List
2. x : cat-ob(poset-cat(I))
3. y : cat-ob(poset-cat(I))
4. f : cat-arrow(poset-cat(I)) x y
⊢ (λx.Ax) = f ∈ (∀x@0:nameset(I). (↑(1 o x) x@0 ≤z (1 o y) x@0))
BY
{ (All (RepUR ``poset-cat all``) THEN FunExt THEN Reduce 0 THEN Auto) }
1
1. I : Cname List
2. x : name-morph(I;[])
3. y : name-morph(I;[])
4. f : x@0:nameset(I) ⟶ (↑x x@0 ≤z y x@0)
5. x@0 : nameset(I)
⊢ Ax = (f x@0) ∈ (↑(1 o x) x@0 ≤z (1 o y) x@0)
Latex:
Latex:
1. I : Cname List
2. x : cat-ob(poset-cat(I))
3. y : cat-ob(poset-cat(I))
4. f : cat-arrow(poset-cat(I)) x y
\mvdash{} (\mlambda{}x.Ax) = f
By
Latex:
(All (RepUR ``poset-cat all``) THEN FunExt THEN Reduce 0 THEN Auto)
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