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Step * 1 of Lemma arrow_pair_lemma


1. y : Top@i
2. x : Top@i
⊢ arrow(<x, y>) ~ y
BY
{ Try (RW (AddrC [1] (UnfoldC `functor-arrow` ANDTHENC ReduceC)) 0)⋅ }

1
1. y : Top@i
2. x : Top@i
⊢ y ~ y

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Latex:

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Latex:

1.  y  :  Top@i
2.  x  :  Top@i
\mvdash{}  arrow(<x,  y>)  \msim{}  y


By

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Latex:
Try  (RW  (AddrC  [1]  (UnfoldC  `functor-arrow`  ANDTHENC  ReduceC))  0)\mcdot{}

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