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Step * 1 of Lemma nil-contains


1. [T] : Type
⊢ [] ⊆ [] ⇐⇒ True
BY
{ ((Auto THEN BLemma `l_contains_weakening`) THEN Auto) }

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Latex:

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Latex:

1.  [T]  :  Type
\mvdash{}  []  \msubseteq{}  []  \mLeftarrow{}{}\mRightarrow{}  True


By

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Latex:
((Auto  THEN  BLemma  `l\_contains\_weakening`)  THEN  Auto)

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