Step
*
of Lemma
tl_wf
∀[A:Type]. ∀[l:A List]. (tl(l) ∈ A List)
BY
{ ((UnivCD THENA Auto) THEN D 2 THEN Reduce 0 THEN Auto) }
Latex:
Latex:
\mforall{}[A:Type]. \mforall{}[l:A List]. (tl(l) \mmember{} A List)
By
Latex:
((UnivCD THENA Auto) THEN D 2 THEN Reduce 0 THEN Auto)
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