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Step * of Lemma lifting-add-spread-1

∀[a,b,C:Top].  (let x,y = b in C[x;y] + a ~ let x,y = b in C[x;y] + a)
BY
{ ProveLiftingLemma }

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Latex:

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Latex:
\mforall{}[a,b,C:Top].    (let  x,y  =  b  in  C[x;y]  +  a  \msim{}  let  x,y  =  b  in  C[x;y]  +  a)


By

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Latex:
ProveLiftingLemma

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