Step
*
of Lemma
msg-interface-constraint_wf
∀[f:Name ─→ Type]. ∀[X:EClass(Interface)]. ∀[hdrs:Name List].  (msg-interface-constraint{i:l}(X;hdrs;f) ∈ ℙ')
BY
{ WithCumulativity(ProveWfLemma) }
Latex:
Latex:
\mforall{}[f:Name  {}\mrightarrow{}  Type].  \mforall{}[X:EClass(Interface)].  \mforall{}[hdrs:Name  List].
    (msg-interface-constraint\{i:l\}(X;hdrs;f)  \mmember{}  \mBbbP{}')
By
Latex:
WithCumulativity(ProveWfLemma)
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