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Step * of Lemma cat-isomorphism_wf

∀[C:SmallCategory]. ∀[x,y:cat-ob(C)]. ∀[f:cat-arrow(C) x y].  (cat-isomorphism(C;x;y;f) ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[C:SmallCategory].  \mforall{}[x,y:cat-ob(C)].  \mforall{}[f:cat-arrow(C)  x  y].    (cat-isomorphism(C;x;y;f)  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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