---

Step * of Lemma dl-diamond?_wf

∀[x:Prop]. (dl-diamond?(x) ∈ 𝔹)
BY
{ ProveWfLemma }

---

Latex:

---

Latex:
\mforall{}[x:Prop].  (dl-diamond?(x)  \mmember{}  \mBbbB{})


By

---

Latex:
ProveWfLemma

---

Home Index