---

Step * of Lemma map_length_nat

∀[A,B:Type]. ∀[f:A ⟶ B]. ∀[as:A List].  (||map(f;as)|| = ||as|| ∈ ℕ)
BY
{ (RWO "map-length" 0 THEN Auto') }

---

Latex:

---

Latex:
\mforall{}[A,B:Type].  \mforall{}[f:A  {}\mrightarrow{}  B].  \mforall{}[as:A  List].    (||map(f;as)||  =  ||as||)


By

---

Latex:
(RWO  "map-length"  0  THEN  Auto')

---

Home Index