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Step * 1 1 of Lemma union-eta

.....wf..... 
1. x : Top
⊢ istype(inl x ~ inr ⊥ )
BY
{ (BLemma `istype-inl-sqeq-inr` THEN Auto) }

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Latex:

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Latex:
.....wf..... 
1.  x  :  Top
\mvdash{}  istype(inl  x  \msim{}  inr  \mbot{}  )


By

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Latex:
(BLemma  `istype-inl-sqeq-inr`  THEN  Auto)

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