Step * of Lemma imagetype_wf

[A:Type]. ∀[f:Base].  (imagetype(A;f) ∈ Type)
BY
(InstLemma `image-per-transitive` []
   THEN RepeatFor (ParallelLast')
   THEN ProveWfLemma
   THEN All (RepUR ``so_apply``)
   THEN Auto) }

1
1. Type
2. Base
3. Trans(Base;x,y.image-per(A;f) y)
4. Base
5. Base
6. image-per(A;f) y
⊢ image-per(A;f) x


Latex:


Latex:
\mforall{}[A:Type].  \mforall{}[f:Base].    (imagetype(A;f)  \mmember{}  Type)


By


Latex:
(InstLemma  `image-per-transitive`  []
  THEN  RepeatFor  2  (ParallelLast')
  THEN  ProveWfLemma
  THEN  All  (RepUR  ``so\_apply``)
  THEN  Auto)




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