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Step * of Lemma int_seg_subtype_special

∀[n,m:ℤ].  ({n + 1..m-} ⊆r {n..m-})
BY
{ TACTIC:Auto }

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Latex:

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Latex:
\mforall{}[n,m:\mBbbZ{}].    (\{n  +  1..m\msupminus{}\}  \msubseteq{}r  \{n..m\msupminus{}\})


By

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Latex:
TACTIC:Auto

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