---

Step * of Lemma let_wf

∀[A,B:Type]. ∀[f:A ⟶ B]. ∀[x:A].  (let v = x in f[v] ∈ B)
BY
{ ProveWfLemma }

---

Latex:

---

Latex:
\mforall{}[A,B:Type].  \mforall{}[f:A  {}\mrightarrow{}  B].  \mforall{}[x:A].    (let  v  =  x  in  f[v]  \mmember{}  B)


By

---

Latex:
ProveWfLemma

---

Home Index