Step
*
of Lemma
es-empty-interface-property
∀[Info:Type]. ∀[es:EO+(Info)].  es-interface-empty(es;Empty)
BY
{ (RepUR ``es-interface-empty es-empty-interface in-eclass can-apply`` 0 THEN Auto) }
Latex:
\mforall{}[Info:Type].  \mforall{}[es:EO+(Info)].    es-interface-empty(es;Empty)
By
(RepUR  ``es-interface-empty  es-empty-interface  in-eclass  can-apply``  0  THEN  Auto)
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