Step * 1 of Lemma non-pair-list


1. Type
2. ff ff
⊢ [] ∈ Unit
BY
(Unfold `nil` THEN Auto) }


Latex:


Latex:

1.  T  :  Type
2.  ff  =  ff
\mvdash{}  []  \mmember{}  Unit


By


Latex:
(Unfold  `nil`  0  THEN  Auto)




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