---

Step * of Lemma disjoint-union-class_wf

∀[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[Y:EClass(B)].  (X + Y ∈ EClass(A + B))
BY
{ ProveWfLemma }

---

Latex:

---

Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[X:EClass(A)].  \mforall{}[Y:EClass(B)].    (X  +  Y  \mmember{}  EClass(A  +  B))


By

---

Latex:
ProveWfLemma

---

Home Index