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Step * 1 of Lemma filter_nil_lemma


1. P : Top@i
⊢ filter(P;[]) ~ []
BY
{ Try (RW (AddrC [1] (UnfoldC `filter` ANDTHENC ReduceC)) 0)⋅ }

1
1. P : Top@i
⊢ [] ~ []

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Latex:

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Latex:

1.  P  :  Top@i
\mvdash{}  filter(P;[])  \msim{}  []


By

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

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