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Step * of Lemma fresh-sig-protocol1_wf

∀[s:SES]. ∀[bss:Basic1 List].  (FreshSignatures(bss) ∈ ℙ')
BY
{ (Auto THEN Unfold `fresh-sig-protocol1` 0 THEN Assert ⌜SecurityData ∈ 𝕌'⌝⋅ THEN Auto) }

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Latex:

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Latex:
\mforall{}[s:SES].  \mforall{}[bss:Basic1  List].    (FreshSignatures(bss)  \mmember{}  \mBbbP{}')


By

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Latex:
(Auto  THEN  Unfold  `fresh-sig-protocol1`  0  THEN  Assert  \mkleeneopen{}SecurityData  \mmember{}  \mBbbU{}'\mkleeneclose{}\mcdot{}  THEN  Auto)

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