Step * of Lemma oob-hasright_wf

[B,A:Type]. ∀[x:one_or_both(A;B)].  (oob-hasright(x) ∈ 𝔹)
BY
ProveWfLemma }


Latex:


Latex:
\mforall{}[B,A:Type].  \mforall{}[x:one\_or\_both(A;B)].    (oob-hasright(x)  \mmember{}  \mBbbB{})


By


Latex:
ProveWfLemma




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