Step
*
of Lemma
nil_before
∀[T:Type]. ∀x,y:T. (x before y ∈ []
⇐⇒ False)
BY
{ (Auto THEN (Unfold `l_before` (-1) THENM RWO "cons_sublist_nil" (-1)) THEN Auto) }
Latex:
Latex:
\mforall{}[T:Type]. \mforall{}x,y:T. (x before y \mmember{} [] \mLeftarrow{}{}\mRightarrow{} False)
By
Latex:
(Auto THEN (Unfold `l\_before` (-1) THENM RWO "cons\_sublist\_nil" (-1)) THEN Auto)
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